Osprey Aether 70

Priced: $223.19 - $290.00 Rated:   - 5 stars out of 5 by 56 reviews.
Osprey Aether 70 -
Lightweight and comfortable Aether 70 is a versatile pack with adequate space and organization for weekend or weeklong trips lasting 3 to 7 days. The bestselling backpacking series on the market just got even better. Known for its ability to be taken all over the world, from the summit of Everest to a backpack trip through your local wilderness, the fourth generation of Aether builds upon its reputation for combining clean design, custom fit and outstanding load carrying comfort. Amongst a plethora of upgrades, the new IsoForm? CM hipbelt adds stiffness and padding for even better performance with heavy loads. Amazingly, all this comes with no increase in weight.

• AddOn Attachment - Attach an AddOn style pack such as the Daylite daypack using the built-in cord loops.
- External hydration sleeve in backpanel simplifies refilling and protects pack contents from spills.
- The compression strap on the side stretch woven pocket can be routed externally or internally to secure your gear.
• Strong J-zipper on front panel provides quick access to gear in main compartment.
- The top pocket quickly converts to a lumbar pack with a built-in hipbelt.
• Easy to find red compression strap compresses loads for fit and stability.
• Zippered top pocket offers storage for smaller items like maps and headlamps.
• AirScape Backpanel - New AirScape backpanel with ridge molded foam and smooth spacer mesh lumbar fabric for increased comfort.
• LightWire peripheral frame works in conjunction with a single 6061-T6 center stay and an HDPE framesheet to effectively transfer loads and provide optimal carry.
• IsoForm Harness - Interchangeable, adjustable gender specific IsoForm harness provides a comfortable, stabel fit.
• IsoForm CM Hipbelt - Gender specific, Custom Moldable and removable IsoForm CM Hipbelt balances firmness and cushioning providing optimal carry.
• Volume Cubic Inches: (S) 4089 cu in, (M) 4272 cu in, (L) 4455 cu in, (XL) 4638 cu in.
• Volume Liters: (S) 67L, (M) 70L, (L) 73L, (XL) 76L
• Weight: (S) 4lbs 8oz, (M) 4lbs 12oz, (L) 4lbs 15oz, (XL) 5lbs 3oz.
• Dimensions: 32 x 14 x 12 in. (81 x 36 x 31 cm)
• Recommended Use: 3-7 day backpacking trips, 50-65lb load

Support and Cushioning:

  • HDPE framesheet and a center aluminum stay protect your back from bulky or pointy items and support heavy loads
  • LightWire alloy peripheral frame suspension with recycled HDPE framesheet offers lightweight support; AirScape ribbed foam with grip mesh backpanel provides comfort and breathability
  • Removable IsoForm CM (Custom Moldable) hipbelt offers superior load support with dual-density foam for enhanced support and an anatomically contoured shape


  • ErgoPull hipbelt closure provides extra leverage in cinching, drawing tension along top and bottom-not through the center-to relieve hipbone pressure
  • Men's Isoform4 CM Hipbelt and Harness
  • Running down the sidewalls, the peripheral frame anchors to the load-lifter straps and hipbelt, transferring the load to your hips and resisting sag
  • Osprey-certified custom molding available in most stores—check your local REI store for a custom hipbelt molding oven
  • Osprey pack frames have a pair of "wings" that sprout behind where the ends of the hipbelt attach to the pack. Many people find that these wings cradle their hips nicely and provide good weight transfer.
  • Top pocket can be removed and converted into a lumbar pack; IsoForm hipbelt on pack can be removed and slid onto lumbar pack for comfortable carrying


  • The AirStream ventilated back panel features a velcro-based adjustment system that allows you to fine-tune the pack to your torso length within each pack size (small/medium/large).
  • Choose between the S, M, L, and XL sizes depending on trip length and the amount of gear you carry


  • J-zipper panel access on the front of the pack body makes stowing and accessing your gear a breeze, even when it's buried deep in the pack
  • New zippered hip belt pockets provide secure storage
  • Large top area and front J-zip offer wide, easy, and quick access to the main compartment


  • Top pocket quickly and easily converts to a lumbar pack with a built-in hip belt for shorter side trips
  • Dual-access stretch mesh side pockets stash your water bottles


  • Durable materials and construction ensure a solid pack that lasts season after season
  • 210D nylon block shadow
  • 75D nylon stretch woven ripstop
  • New Airscape™ back panel with smooth spacer mesh lumbar fabric
  • Osprey Aether 70 pack shaves weight yet remains tough with a 210-denier double-ripstop nylon and 420-denier nylon packcloth body and 500-denier plain-weave oxford nylon bottom
  • Dual-entry, stretch-woven side pockets keep essentials easily accessible, and a stretch-woven front pocket with welded vent accepts Osprey AddOns (sold separately)
  • Adjustable stretch woven front pocket with welded vent is perfect for stashing extra layers or other items you want easily accessible

Lining and Layers:

  • The front stretch pocket is well-designed and handy for stashing layers that you will be taking on and off throughout today, and the compression straps that run across the front of the pack provide a handy external stowage option not found on many other packs in this category.


  • IsoForm CM hipbelt can be heat-molded for the perfect fit and features Osprey’s exclusive ErgoPull design for quick and easy fit adjustments
  • IsoForm CM hip-belt can be heat-molded at any authorized Osprey dealer for a customized fit
  • IsoForm CM hip-belt balances firmness and cushioning for optimal carry while the spacer mesh IsoForm harness offers a comfortable fit
  • IsoForm harness with spacer mesh surface comes in multiple sizes and gender-specific cuts and has no sewn seams for excellent comfort and fit


  • Removable sleeping pad straps allow you to attach a sleeping pad to the outside of the pack, leaving more room inside for the rest of your gear
  • Trekking pole attachment, side gear straps, ice axe tool loops, cord loop attachment slots and removable sleeping pad straps accommodate a variety of alpine gear
  • Removable sleeping pad straps, two ice axe loops and handle wraps, and Stow-on-the-Go trekking pole attachment help to keep your gear securely in place


  • Dual-density foam harness with spacer mesh promotes airflow and wicks away moisture during warm weather and intense activity
  • Airscape backpanel supplies a smooth, breathable contact surface


  • Hydration-compatible design features reservoir sleeve and dual drink tube exit ports for on-the-go hydration (reservoir sold separately)
  • The hydration sleeve on this pack is cleverly located between the back panel and the pack body, instead of inside the pack, which simplifies refilling and protects the pack contents from spills.


  • Backpanel sleeve with hanger accommodates up to a 3 L reservoir; hose can be routed through a slot on either side of the pack depending on your preference


  • LightWire suspension uses peripheral rods, a nubbed foam back panel, single stay and an internal framesheet


  • Upper and lower side compression straps help secure your gear, minimize pack volume, and improve load stability


  • Straightjacket compression with 3 horizontal straps let you securely compress the contents whether full or nearly empty, and without sag or load distortion
  • FREE shoulder strap and belt swap available upon request
  • Three horizontal Straightjacket-style compression straps on the front of the pack provide additional load stability
  • Red Internal Compression Strap
  • Dual side compression straps and StraightJacket compression help to balance and secure the load


  • AddOn Compatible
  • Built-in Raincover (Europe Only)
  • AddOn™ Attachment
  • Ideal for carrying loads between 50 and 65 lb. (perfect for a 3+ night trip)
  • Wide mouth sleeping bag access with divider keeps your bag easily accessible and separate from the rest of your gear
  • Single 6061-T6 center stay maintains the backpanel shape
  • Osprey recommends the AddOns Daylite detachable daypack when your weeklong trip requires a little extra gear
  • InsideOut Compression
  • Externally accessible bottom compartment with a wide mouth and divider accommodates all types of sleeping bags

Osprey's Aether 70 is the backpacking equivalent of a luxury SUV: it's comfortable, feature-rich, and at home on all kinds of terrain. It's much more eco-friendly than the SUV would be, of course; this pack doesn't guzzle gas, it guzzles gear. Its 70-liter capacity is sufficient for many types of trips, whether it's a 5-day hike in the Sierras or a climb to the summit of Everest (the Aether has been there!).

 Here are a few of the features that set the Aether apart from the crowd:

But that's not all, of course, so here comes our usual bulleted list of



Optimum Load Range: 50-65 lbs.


Light on weight and packed with features the Osprey Aether 70 backpack is ideal for the vast majority of backcountry enthusiasts. Its Airscape backpanel provides superior breathability and pack to body comfort while the IsoForm CM hipbelts offer a heat molded fit with gender specific cuts. Sleeping pad straps and a sleeping bag compartment help amplify stowage for added gear necessary to survive during extended excursions. Like a good friend this backpacks got your back.
An ideal size for the majority of backpackers, the Osprey Aether 70 backpack will carry what you need - whatever your favorite adventure.


The Osprey Aether 70 Backpack really is the pack that does it all from gear-heavy weekend backpacking trips and ski tours to mountain-climbing excursions. Built with outstanding load-carrying comfort, the Aether 70 features a new IsoForm CM hip-belt that adds stiffness and padding for better performance with heavy loads without increasing the Aether's weight.


The Osprey Aether 70 Backpack is an ideal size for the majority of backpackers, the Aether 70 will carry what you need - whatever your favorite adventure. With added features like J- Panel access, Stow-on-the- Go trekking pole attachment and an improved suspension technology, this backpack remains the #1 choice for adventurers of all calibers.

FEATURES of the Osprey Aether 70 Pack.
SPECIFICATIONS of the Osprey Aether 70 Pack.

An ideal bag for light backpacking and mountaineering.
Features AirScape Suspension – peripheral 7075 AL rod, ventilated nubbed foam back panel, and internal framesheet with single aluminum stay.
Large main compartment will hold all of your gear.
Welded stretch woven front pocket delivers extra carrying capacity.
Top pocket converts into a fanny pack.
Dual entry stretch woven side pockets all for easy access to water bottles.
Spacious, zippered sleeping bag compartment provides organized load division and easy alternative access to the main pack body.
Side carry loops to secure skis or poles for stable and easy transport.
IsoForm harness with dual density foam and IsoForm CM™ hip belt provide a custom, heat molded fit for extra comfort.
Osprey will repair for any reason, free of charge, any damage or defect in their product − whether it was purchased in 1974 or yesterday. If they are unable to perform a functional repair on your pack, Osprey will happily replace it.

The Osprey Aether 70 Liter Pack is an ideal size for a variety of backpacking and mountaineering adventures. Packed with features to improve everything about your adventure this backpack remains the #1 choice for explorers of all calibers.

Appalachain Outdoors
The Aether 70 from Osprey has all of the features you want in a pack without sacrificing weight. With it's built in rain cover, easy side access, and add-on options, this backpack will take you places you have only imagined until now. Stick your camera in the hip belt pocket so you never miss that perfect shot!
Eastern Mountain Sports (EMS)
An ideal size for a variety of adventures, the Osprey Aether 70 backpack boasts a plethora of features, incredible suspension technology, and a super-adjustable harness and hipbelt to make it a top choice for backpackers of all abilities.
Mountain Gear
After 4 generations as one of the most versatile and top performing packs on the market, the Osprey Aether 70 Backpack is back again and better than ever.


Slip the Osprey Aether 70 pack onto your back and enjoy the comfort of a custom, heat-moldable hipbelt and a superb, lightweight design for your backcountry adventures.


Half-Moon Outfitters
Removable IsoForm CM (Custom Moldable) hipbelt offers superior load support with dual-density foam for enhanced support and an anatomically contoured shape
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Review RatingNumber of Reviews
AddOn Compatible:Attach a Daylite or Solo daypack using the built-in cord loops.
Adjustable Torso Length:No
Adjustable torso:Lightweight backpack
Backpack Features:Lumbar Pack Lid, Sleeping Bag Compartment, Top Loader
Backpack Style:Multi-Day Pack
Backpanel:AirScape backpanel with nubbed foam and grip mesh covering provides superior breathability and ultra-comfortable pack to body contact.
Bottom Width:11 in
CM:81 x 36 x 31
Capacity:Small: 4089 cu in / 67 L Medium: 4272 cu in / 70 L Large: 4455 cu in / 73 L X-Large: 4638 cu in / 76 L
Carrying Capacity:Up to 65 lbs.
Custom Fit Options:IsoForm harness in multiple sizes and gender specific cuts features spacer mesh surface with no sewn seams for superb comfort and contoured fit
Depth:6 in
Detachable Pack:yes
Dimension:(H x W x D)
Dimensions:SM 4000 cu. in. (67 li.), MD 4200 cu. in. (70 li.), LG 4400 cu. in. (73 li.)
Fits Torso Length:SM - 16 - 18 1/2 in
Fits torso:Lightweight backpack
Fits waist/hips:Lightweight backpack
Frame material:No
Frame type:Backpacking
Gear capacity (L):Internal
Gear capacity (cu. in.):Internal
Gear loops:Ski/Trekking pole loops secure skis or poles for easy, stable transport
Handle Drop:5 in
Handle Length:10 in
Height:24 in
Helmet Carrier:no
Hip Belt:IsoForm CM™ Hipbelts provide custom, heat molded fit in multiple sizes and gender specific cuts
Hydration Bladder Included:Not Included
Hydration Compatible:A backpanel sleeve with hanger holds 3-liter and smaller hydration reservoirs. Route the hose out the slot on either side of the pack.
IN:31 x 14 x 12
Ice Axe Loops:yes
InsideOut Compression:The compression strap on the side stretch woven pocket can be routed externally or internally to secure your gear
J-Panel access:Provides quick access to packed gear.
Laptop Sleeve:None
Load Range:50-65 lbs
Material:210D nylon dobby,210D nylon block shadow
Max Capacity:S: 67L, M: 70L, L: 73L, XL: 76L
Max Load Capacity:60 lb / 27.2 kg
Middle Width:10 in
Number of External Pockets:3; Dual entry stretch woven side pockets allows easy access to water bottles, Welded stretch woven front pocket delivers extra carrying capacity
Number of Pockets:6
Number of exterior pockets:70 liters
Number of stays:No
Organization Pocket:yes
Pack Fabric (Primary):210D Shadow Check Nylon
Pack Size:4000-4999 cu in
Pack access:67 liters
Pack loading:No
Primary Access:Top Access
Raincover included:76 liters
Shovel Pocket:no
Ski / Snowboard Carrier:no
Sleeping Pad Straps:Every Aether/Ariel Series pack features removable sleeping pad straps.
Sleeping bag compartment:73 liters
Strap Drop:15 in
Strap Length:30 in
Suspended mesh back panel:No
Suspension:AirScape suspension
Tool Attachment:Each Aether/Ariel Series pack features dual ice ax loops and bungee tool tie-offs
Top Width:10 in
Torso Length:S 16-18.5 in.M 18-20.5 in.L 20-22.5 in.XL, >22 in.
Trekking Pole Loops:yes
Trip Length:Extended Trip (>3 nights)
Volume:S 4089 cu. in. (67 L)M 4272 cu. in. (70 L)L 4455 cu. in. (73 L)XL 4638 cu. in. (76 L)
Volume Range:70+ liters
Weight:Small: 4 lb 13 oz / 2.1 kg Medium: 4 lb 15 oz / 2.2 kg Large: 5 lb 3 oz / 2.3 kg X-Large: 5 lb 4 oz / 2.4 kg
Weight - metric:Internal
Weight Capacity:Over 50 lb.
Compare specifications to related products.

Subcategories of Backpacks, Daypacks & Bags:

Osprey Aether 70 Reviews:

Positive Reviews:

Amazing! Tall/skinny watch shoulders tho


This was my very first pack. I now lead trips occasionally and am still using the same pack for upwards of 5 years. It is showing virtually NO signs of wear and tear (quite unbelievably actually, after a good wash the pack looks practically new).

I am a "comfort-minimalist". The 2 options REI gives you are not a good representation of all backpackers I don't believe. I take as little gear as possible, but I do still take all the basic essentials shaving weight wherever possible.

Perfect size for small-medium trips (up to a week max probably; I'd struggle to fit food in here for longer than that).

-VERY comfortable overall. Very adjustable. Usually can't even tell you have the pack on (except my shoulder issue, see below).

-Tons of pockets on all sides and the "O-rings" on the zippers making opening and closing the pack, esp the zipper above your head, a BREEZE. I honestly can't imagine going without this feature as I use that pocket nonstop (snacks, camera, gps).

-I carry a 4 Liter hydration pack and it does not fit in the hydration pocket. It is not really an issue since I just lay it down inside the bag, but there has been an incident where I took a bump and my hydration pack leaked into my bag a tiny bit. Very minor issue.

-The shoulder padding could be a tiny bit better. It isn't bad, but after a few days trek, I tend to bruise on my collarbones while the rest of my body is super happy. I do have bony collarbones, but still :p

-Along with the shoulder padding problem; I often find the shoulder straps are a little too long so I have to use my hands to push them forward (even when the adjustment straps are all the way in, the issue is at the top of the "main" shoulderstraps, the part that goes over the collarbones and is not adjustable....its just too long for my very tall/slender build). I am a tall, skinny individual (6'1; 135lbs) and so this may be a problem with all packs for me. I don't really know b/c I've been so happy with this one I haven't needed to try any other packs.

IMPROVEMENTS I WOULD MAKE: (Not really issues, but the bag would be even better with these)

-Pockets on the hipbelt area.

-Larger hydration bladder pocket and move it to the outside of the pack (I think new models do this actually, not sure).

-More pockets on the outer "sides" of the bag. It is just fabric and there is certainly room to put a pocket there.

There are already plenty of pockets and space, they are all accessible and the pack is very comfortable. I would absolutely recommend it to most everyone, but CHECK THE SHOULDERSTRAP LENGTHS TO MAKE SURE THEY ARENT TOO LONG FOR YOU IF YOU ARE A VERY SLENDER PERSON, ESP ON TALL MODELS. That is the only gripe I have with this pack....

if my shoulderstraps were 1.5-2" shorter I wouldn't even know I was wearing this pack (remember, I'm really skinny for my size, this likely won't be an issue for the majority of you)
Mani A at REI on 03/03/2013

Great Pack

This is a great pack. I decided since I am getting older that I needed a better pack to keep up with the scouts in my son's Boy Scout troop. I read hundreds of hours of reviews and tried on many different packs...normally placing 30 pounds in each bag to "test" it out. I decided on the Aether. I tried out the 60 and 70. I placed a weekend load into each. I compressed and abused each. I was torn between the 60 or 70- do I really need the 70? But at 1 oz more in weight...and with the great compression...why give up the flexibility of the 70? Like I said, I am getting older...so comfort and the right gear counts. I am past my ultra light days!!! With that said, I don't normally carry over 25 pounds...but I love me a pillow and other comforts that can be a bit bulky. The Aether 70 has great water pockets (You can place them straight in or "pull" style with the upper front opening in the pocket), a large sleeping bag opening (I can place my 15 degree down bag and tent in the same space (minus poles of course), it has a divider that can be hooked and unhooked as needed to separate sleeping bag area from the cavity of the pack, large zipper entrance on the front instead of using the top opening (makes for easy extraction of small stuff), great compression and expansion, fits and feels perfectly on the body (it has an adjustable harness…but I didn't need to adjust from the original set up) and I can hardly feel any weight. Impressive! I did not "heat" mold the belt- doesn't need it. The pockets on the belt are large and very nice. Words cannot describe how well the belt cinch's when you pull them. Excellent. The top pocket in large and can carry all my small stuff in one place. A second pocket would have been idea...but still love the entire design of the pack. Oh- this year's model has the hydration port on the outside. Even with a 70oz bladder filled, I hardly noticed it there as I hiked. I bought the medium Osprey rain cover for it...works perfectly. Space to have stuff on the outside if needed. Don't get the large...it would be way to big. Wish it had a drain hole though. Overall, a perfect multiday or weeklong (or more) pack. It will fulfill what I need it to do and more as I progress through the Boy Scouts with my son. It has great features, light, excellent support and with Osprey's warranty and REI support- a win/win forever. I am 5'9", 160 pounds with a torso of 18.5". I bought the medium. I used the "stock" harness and belt- they are perfect for my size. Good luck!
Tom on the Mountain at REI on 03/03/2013

Is this the pack for me?

I am writing this for people like me who review things to death, before making a jump...
So your getting into hiking? Me too!
I originally was looking at a Osprey Aether 85, till I went to my local REI and seen that it was a monster. So I talked to the equipment pro and got sized for the Aether 70. This is when I started having doubts. I guess I am odd shaped or the bag was.. So long story short I bought the Aether 70, and rushed home to fill it with all my gizmos I have collected.. Note to self, your carrying this beast. Lets just say if your getting into backpacking as I am weight is everything..lol
So, as I found on my first hike to Point Reyes, It carries a ton of stuff, maybe too much for my needs.. I lugged about 50lbs in it and the back handled the load, but not me. I learned a lot on this trip. I lost all confidence in the pack, I was told that the size Large was best for me, I fought adjustments the whole way. so After the trip I went back to REI and the pros tried helping me adjust it, and I was told I should have got the Medium.. OK So I am not happy at this point... So as I said I lost all confidence in this pack, and staff... Lol So Because REI is awesome on returns, I returned it, And opted for a smaller Osprey Talon 44
Ok so This back was not right for me, but it is a awesome bag... I just want to state, be honest with yourself.. If your a avid hiker, and want to go beyond the realm of day hikes and weekenders this pack is designed to take you to the heights and beyond. I just wasn't going to get there in this pack..
This Aether 70 had all I was looking for, A lot of space.. And it has three point of entry, top, bottom, and front load.. great for getting gear without unpacking whole bag. Side pockets on hip belt great for lights, and chapstik and gizmos. The hood is awesome for maps, jacket, lunch, and so on, It is pretty roomy. The bag has several attachment points on the outside, and a nice strechy pocket, where I stowed my vibrams and a ax.. Overall I would recommend this pack to a friend and anyone that is real serious about hiking...
vit0bandit0 at REI on 06/06/2013

nice bag but, not enough organization

I took this pack on the Catalina Trail - 3 of us had Osprey Aethers and the two others had Kelty and Teton Packs. Each of us who had the Aether loved the comfort but when it came time for a rest stop for fuel (snacks and hydration) all us Osprey users noted that our snack foods ended up in the main compartment because none of us wanted to expose our foods to wildlife in the Osprey's mesh side pockets.

The other two guys had great big zippered side pockets (like 4 of them) and they proceeded to show us how they use them for organization of first aid packs, snack foods, electronic devices, and each had a general "stuff" pocket for clothes lines, knife, utensils, etc. We Aether users were all envious of those pockets.

I also noted that for mountaineering, or applications that require a helmet, you will want to keep soft goods in the top compartment and leave a bit of extra space so your helmet can push into it when you need to straighten your windpipe for heavy breathing. I found this to be very important as I literally had to take the pack off on my first helmet hike to catch my breath.

And Finally.... I advise that anyone using this pack with a hydration bladder "USE THE OSPREY HYDRATION BLADDER" BECAUSE IT IS DESIGNED TO SPREAD THE WATER OUT ACROSS THE BACK PAD. First trip out I used a camel pack bladder and noted it's bulb-tube shape had rounded the back pad so that only the middle 4 inches was rubbing against my back rather than a flat pad. That sucked! It was quite uncomfortable and one of the other Osprey hikers had the same problem, while the third Osprey hiker didn't because he had the Osprey Bladder. In the end, it is a great pack, I kinda wish I had purchased the 85 liter rather than the 70 as it is a tad small for a Mt. Ranier Climb (mainly because it lacks side pockets for crampons, and similar stuff), but it is a great pack for 3-4 day trips and very comfortable. I plan to add one of the Osprey day packs that are designed to piggyback the bag to overcome the organization issue.

Hope this info helps you.

Have fun and hike safe folks!
NautiJohnson (Boater and Hiker) at Rock/Creek Outfitters on 09/09/2013

I have had this pack for the past year and enjoyed it. While it does lack useful pockets for organization, it is good in terms of comfort, quality and space. I love the trekking pole holders and the removable lid (that turns into a fanny pack). The outer stuff pocket becomes pretty useless if you fill the main compartment, and the J-zipper access was never really that useful to me due to its odd J design (does not open up all the way. My last complaint is that the padding on the back of the hip belt is rough and has caused me pain right on my lower back area after multiple days of heavy backpacking. Osprey decided to make that bit of padding that has direct contact with your lower lumbar region bumpy and slightly abrasive, hence causing discomfort after long periods. Overall I would give this pack a 4.5/5 stars if I could, the rough lumbar padding being my only real gripe. My last comment is not directly about the pack, but just a helpful hint about sizing. I am 5'10" and 150 lb's. I have always assumed I was a medium in pretty much everything because of my height. But it turns out that my torso length was exactly between a medium and a small. I originally went with a medium. This caused the shoulder straps to just barely not correctly hold the pack tightly against my back, causing my lower back pain after several hours of backpacking with a heavy load. The small size backpack fit much better and eliminated the problem. So if you are barely a medium or in between sizes, consider going down a size in this pack.

Johan at Backcountry.com on 05/18/2013

This is one great backpack!

Took this first time out on a 7-day Sierra trip. What a great pack! Easy to load with compression straps in all the right places. My down sleeping bag stuffs nicely into the bottom section with the internal compression straps fully synched.

Dual access to the main compartment is nice, though not necessary for me. With this pack, it is necessary to think "vertical" when loading. For example, I roll up my air mattress and stand it vertically along side my bear canister (also vertical) in the main compartment. I use one long compression bag for clothes vertically on the other side of the canister. Tent poles go vertically inside as well. My tent body slides right into the big outside mesh compartment, sinched down with the two horizontal straps, and the rain fly goes vertically in the side compartment.

The zippered pockets on either side of the belt are great for small first aid kits, bug spray, medicine, snacks, small tools, or whatever!

Customizing the fit of the Aether 70 is amazing. I'm short, but wider across the chest. So my REI associate helped to get the size just right. I use a "small" pack with a "medium" harness to get the PERFECT fit. I can get most of the weight on my hips, and at the same time, transfer some to my shoulders and back using the quick-adjust straps. And I can do this WHILE I HIKE without taking the pack off! It's amazing - and comfortable!
Rick-ster at REI on 08/08/2013

Fantastic pack!

I did quite a bit of research on packs and the Ospery Aether 70 is the best that is out there!
I'm not an avid hiker, but I did my homework and capacity, comfort, functionality were my deciding factors. I bought this pack at the local REI, which I recommend you do. The sales people there are very knowledgeable and will help you get the pack fitted for your size and comfort. They have great tips and info on how to setup the pack and use it. Luckily I had a friend show me how to strap it on and adjust it at the beginning of my first hike with it. Went 2 days over 17 miles in NW Washington with no issues. This pack is durable and fits everything I need for multi-day overnight hikes. It even fits my large -15 mountaineer mummy sac with ease. I put a 2.0L Camelback in the exterior H2O slot, Very nice! Plus (2) 1.4L Nalgene bottles in the side pockets. They fit tight, but that's what you want. Best feature are the small pocket storage packs on the waist belt. They are perfect for small things like lip balm, flash lights, bug repellant etc. Last is the top storage area. It holds a great deal of stuff, I put all my dry food and other items up there for easy access during the hike. Plus you can remove it completely and use it as a day pack. Has a nice waist belt.
Jaymos at REI on 06/06/2013

Great pack for a Plus Size guy.

I know this pack is made for the mountain climber and multi day backpacker in mind. One thing that is usually not taken into consideration when manufacturers produce their outdoor equipment is the "plus sized" person. Yes, us fat people still like to hike and enjoy the outdoors. That being said, although I will not be climbing any mountains anytime soon, this pack was one of the few that would fit around my "plus sized" waist, and it fits like a glove. Most of my packing is done on the weekends with family and comfort in mind. This pack fits the bill perfectly. Not only does it have the room to carry everything I require for camp comfort, but it molds perfectly, and carries like it's simply an extension of my body. This was my first pack graduating from the "old school" aluminum external frame, and I'm hooked. The best feature, in my humble opinion, is the space provided for the hydration bottle. No more fumbling with a canteen. My water hose sits over my shoulder for easy reach while on the go. Surprisingly the liquid stays nice and cool even in warmer weather. My first use of this pack was an 18 mile trip on the C&O canal. With the waist belt nice and snug the multiple adjustments allowed for on the shoulder straps almost makes this pack carry like its not even there. This pack was well worth every penny.
RickL69 at REI on 06/06/2013

Best of the best

I bought this pack back in March and since have used it more than a dozen times. Two summits this year in the PACNW and a handful of overnighters. Yes a bit big for a few overnighters, but the comfort and capacity have been amazing. Its hard to use anything else. The moldable hipbelt, easy access areas, and adjustable weight control have really come in handy. I have had about 60 pounds in the pack for hike to base camp and out on two occasions and have zero complaints. I am also the young guy, carrying the stove, tent, etc. :) But I had zero complaints with that type of weight for long hikes. The pack sat well, had great access to areas I needed to get to and felt very comfortable. I love Ospreys products so I went ahead and added the Osprey 3 liter water pack to the pack, the rain cover, etc. and I have to say that Osprey did a fantastic job with their accessories. The hydration pack add-on was my favorite as it contours to your back and is made specifically for the size of the packs. Overall, the Aether pack is a great product for overnighters and carrying a lot of equipment on some of those longer hikes. Super comfy and so glad I chose the right product. Thanks.
Mardimus at REI on 08/08/2013

best pack I've owned

Bought this pack May, 2011 and have used it at least 30 nights and an untold number of day trips. I took it to Eagle cap, Oregon for 50 mile trip over 5 days (stuffed it as full as I could) and it performed flawlessly. This is my 4'th backpack and by far the absolute best. I didn't know it was possible to backpack for many hours and be comfortable at the same time. I started using this pack for day trips as well because its so comfortable. The adjusters are very effective. I like all the pockets although I would have liked 1 or 2 small zipper pockets on the waistband for easy access. I really appreciated REI for measuring my back and fitting me to this pack (there are 4 sizes). The pack is very durable and shows no signs of wear even though I take it on the road everywhere I go. I've hiked with a group of guys for a number of years and have watched the various brands and have noted their various weaknesses (broken belt clips, internal frames that poke through, rubbing on the hips or shoulders). The people I been with who've been using Osprey packs have not had these issues. I feel very happy with this product.
cwk at REI on 03/03/2013

Neutral Reviews:

Nice, still on the fence about it

I've only had a chance to use this once on a 3-day hike, 32 miles with 40lb load. The height is adjustable, but I just could never seem to get it comfortable, always adjusting. It was decent and there are a lot of ways to adjust it so I might have to play around with it more. The shoulder strap could use a tiny more padding, I do like the chest strap is vertically adjustable. The material and zippers are solid, the side pockets are hard to put anything in when the pack is full. Has two hip pocket that are nice for easy access. Love that the bottom opens, also inside the pack you can have it one open pack or clip a divider to separate it into top/bottom compartments. Trying to put the weight on my hips just cut into my hips. There are 5 different ways to adjust the pack to your back so I am hoping to find the right fit. Backpacks should be worn and not carried and I felt like it was part of me for brief times.
Kitchensink at REI on 09/09/2013