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Big enough for an overnighter, small enough for day trips, the Osprey Stratos 40 Backpack is a do-it-all all-star of mid-size packs. The sophisticated AirCore suspension offers support that easily handles loads up to 30 lbs. and the hipbelt even does double duty, providing small mesh pockets for handy storage of snacks, sunscreen, etc. Varied load configurations are a cinch thanks to side pockets, compression straps, and a floating top pocket. Jam a water bottle into a side pocket, and then later in the day use the same side pocket and compression strap to carry your trekking poles. Meanwhile the floating top pocket extends to accommodate gear intensive endeavors. A zippered left front pocket allows for access to the main compartment, often a faster method of reaching buried gear than digging down from the main top access.

If you want one pack that will do it all then the Stratos 40 by Osprey Packs is for you. This Pack has a large top loading access and a fixed top lid let you load it to your heart’s content. You can access the main compartment through the left front zippered pocket and horizontal straps allow you to compress the pack StraightJacket style when carrying smaller loads.

The Osprey® Stratos 40 is the perfect size (2,600 cu. in. large) for a full day of hiking or a light and fast overnight. Recommended for loads up to 25 pounds.
With full day to overnight capacity, the Stratos 40 from Osprey will take you high into the stratosphere. If you intend to pushing hard on your next hike, or you just like to cruise in comfort, grab the Startos for weekend adventures. Specifications based on size Medium.
Load up Osprey's Stratos 40L Overnight Backpack and head out to cross another peak off your alpine summit list. Osprey's stretch mesh back panel, harness and hip-belt keep your back cool as you hike up above the treeline, so you're not stuck with a sweat-soaked shirt at the end of the day. Water-resistant zippers and durable, rip-stop nylon material protects your gear and keeps the Stratos in shape for seasons of peak-bagging. Unzip the panel in back, stash your water reservoir in Osprey's internal hydration sleeve, and run your hose out through the top exit port. The Stratos 40 Liter Backpack's vertical zip gives you quick access to the main compartment when you need an extra layer, and dual ice ax loops with bungee tool tie-offs keep your mountaineering gear within reach.

If you want one pack that will do it all then the Osprey Stratos 40 is for you. Large top loading access and a fixed top lid let you load it to your heart’s content. You can access the main compartment through the left front zippered pocket and horizontal straps allow you to compress the pack StraightJacket style when carrying smaller loads. Backpanel Hydration - AirCore backpanel cavity hydration option allows for versatile packing and carry options. Size: S - 2200 cu in, 2 lbs 12 oz. M - 2400 cu in, 2 lbs 14 oz. L - 2600 cu in, 3 lbs.

If you want one pack that will do it all then the Stratos 40 is for you. Large top loading access and a fixed top lid let you load it to your heart's content. You can access the main compartment through the left front zippered pocket and horizontal straps allow you to compress the pack StraightJacket style when carrying smaller loads.
No description provided.
| Access: | vertical zipper |
|---|---|
| Access Types: | Top loader, vertical zip access |
| Bottom Access: | No |
| Capacity: | 2400 cu in |
| Cargo Capacity: | S 2,200 cu. in.M 2,400 cu. in.L 2,600 cu. in. |
| Cell Phone Pocket/Sleeve: | No |
| Country of Origin: | United States |
| Detachable Pack: | No |
| External Pockets: | 1 Top pocket, front and side stretch woven pockets |
| Fits Torso: | 18 - 20.5 inches |
| Frame Sheet: | No |
| Frame Type: | Internal |
| Front Access: | Yes |
| Gear Loops: | No |
| Hydration Compatible: | Yes |
| Ice Axe Loops: | Yes |
| Load-lifter Straps: | Yes |
| Material: | 210D double ripstop nylon |
| Organizer Panel: | No |
| Other Electronics Pocket(S): | 0 |
| Pack Fabric (Primary): | 210D double ripstop nylon |
| Padded Laptop Compartment: | No |
| Primary Use: | Ultralight |
| Rain Cover: | No |
| Recommended Use: | Full day trips, overnight backpacking |
| Shovel Pocket: | No |
| Ski Carry: | No |
| Sleeping Bag Compartment: | No |
| Snowboard Carry: | No |
| Spindriftcollar: | Yes |
| Stays: | Aluminum struts |
| Sternum Strap: | Yes |
| Sunglasses Pocket, Lined: | No |
| Suspension: | Vertical struts and disc |
| Top Access: | Yes |
| Torso Adjustment: | No |
| Torso Length: | S less than 18.5 in.M 18-20.5 in.L greater than 20 in.S Hip: less than 31 in.M Hip: 30-34 in., L Hip: greater than 33 in. |
| Trip Length: | Weekend |
| Volume: | 2400cu in (40L) |
| Waist Belt: | Yes |
| Warranty: | Lifetime |
| Weight: | S 2 lb. 12 oz.M 2 lb. 14 oz.L 3 lb. 3 oz. |
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View other products from Osprey classified in Hiking & Camping > Backpacks. View all products from Osprey.
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These are products that have been indicated being comparable to this product:
| Osprey Airporter LZ Hiking & Camping > Backpacks | $26.95 - $29.00 | |
| Osprey AquaStow Hiking & Camping > Backpacks | $19.50 | |
| Osprey DigiStow Hiking & Camping > Backpack Accessories | $13.95 - $24.50 | |
| Osprey UL Raincover Hiking & Camping > Backpack Accessories | $19.95 - $39.00 |
This product is available in the following colors:
Click any color to show the product in that color
| Atomic Tangerine | Galactic Black | ||
| Tangerine | Gallactic | ||
| Sonic Blue | |||
Use this chart to find which retailer offers this product in the size, color or other options that you desire. Click on the price to purchase.
| Color | Size | ||
|---|---|---|---|
| Small | Medium | Large | |
| Atomic Tangerine | 148.95 | 148.95149.00 | 148.95149.00 |
| Tangerine | 149.00 | 149.00 | |
| Sonic Blue | 148.95148.952 More... | 148.95148.954 More... | 148.95148.953 More... |
| Galactic Black | 148.95149.00149.00 | 148.95148.953 More... | 148.95149.002 More... |
| Gallactic | 149.00149.00 | 149.00149.00 | 149.00149.00 |
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Stratos goes to Germany | |
| Rating: | ![]() |
I researched many backpacks as I was heading to Germany for a few weeks. Here is what I was looking for: | |
| Rich at Backcountry.com on 05/31/2009 | |
Great pack for overnighters or weekends | |
| Rating: | ![]() |
| I got this pack for a song at a swap meet, and have not looked back. I have owned several packs over the years, Dana Designs, ArcTeryx, Mountainsmith and others, and for a comfortable overnighter or a quick weekend, this pack delivers just what you need. The side stretch pockets are spacious enough for water bottles or a jacket, the stretch front pocket can hold that soggy tent fly, and the hipbelt pockets keep your camera, GPS, compass, lip balm and a few Clf bars at your fingertips. The suspension is top-notch, as is the ventilated back panel. The side-zip access is great for getting to your gear towards the bottom of the pack, and the top lid is big enough to hold your smaller items, but small enough to not flop around when understuffed. The pack also has the ability to cinch WAY down thanks to the innovative front compression straps, which can also hold a snowboard or snowshoes with ease. The 2lb 14oz weight(medium) is practically unnoticeable when stapped to your body. The main drawback I have encountered is, due to the flexed shape of the frame, a full water bladder cuts into the overall capacity of the pack. You can get around this by stashing your bladder between the trampoline mesh backpanel and the pack, but then you lose some of the ability to circulate cool air behind your back, and accesing that space through the provided zip can be a hassle. Other than that, this pack will give you a lot of bang for your buck, and the usual Osprey quality is highly evident. | |
| GoodMojo at Mountain Gear on 10/05/2009 | |
would recommend | |
| Rating: | ![]() |
| I purchased this 2400ci pack to (1) replace a 2000ci pack and (2) to move it away from my back. I tend to carry enough on my day hikes to ensure comfort and safety should I have to spend a night out, and I never seemed to have enough room. I have not yet used the osprey on a day hike - but i have packed it as I normally would the 400ci makes a big difference. I day hike in the inland areas of southern california where the temps in summer can reach 90+ F. My previous pack, although about 1 pound less in weight, would be saturated - as would my back. My hiking buddy who has one of these packs swears by it and was always dry during our hikes while I was wet. I am looking forward to using this on my next dayhike! | |
| bardley smith at Altrec on 02/28/2009 | |
fits all that you need and keeps your back cool | |
| Rating: | ![]() |
This is a great pack. I did some serious looking for a medium capacity pack with all the right pockets and that could compress nice and small. This pack has been great for traveling and for camping, i would highly recommend it. | |
| tdo2473454 at Backcountry.com on 06/15/2009 | |
Most Comfortable Pack | |
| Rating: | ![]() |
This is the most comfortable pack I have found so far. It is great for long weekends. I love all of the features on this pack. All the pockets and easy access points throughout the bag. The hip belt pockets are perfect for an energy bar and multi-tool or iPod. But it packs away everything you need. I have carried 30+ lbs. for a weekend and the pack does not feel like it weighs as much. Also I am a bigger guy and usually sweat a lot with a bag of this size on, the mesh back panel makes it much more comfortable, especially after 8-10 hours of hiking. The air flow system in the back panel will keep you fairly dry and comfortable during your hike. This is a great pack for day trips and weekends! | |
| quinn.chuc2081547 at Backcountry.com on 05/05/2009 | |
Great pack at a great price | |
| Rating: | ![]() |
| I use this pack for carrying my climbing gear and love it. The internal volume is great, the access to the top storage is key and easy to get into even while wearing the pack. The external straps are perfect for securing my rope and the stretch pockets on the outside are great for extra clothes or bottles. The suspension system is great and the straps are comfortable. I especially love the AirCore feature since it gives a simple protected space for your hydration and keeps your back cool and dry. The pack is quite durable and well-built. Storage in the waist straps is excellent as is the ease of adjustment. I recommend this pack for anyone looking to carry a moderate amount of weight moderate distances. | |
| Travis Lent at Altrec on 06/23/2008 | |
Great all around pack | |
| Rating: | ![]() |
Love the size, the color (black), the fit (I am 6'2 205 size large pack), and the air core back is great in the summer. This fits everything I need for any summer outing and short winter outings. For the intended use of a daypack this has more than enough space. For the lightweight hiker this is a great pack that can hold it all for at least a weeklong summer trip. The only downside is that you can't remove the top pocket and the stretch sides are hard to get bottles out of when the pack is loaded. Overall good load distribution, 30 lbs is definitely reaching the limits of my comfort level with this pack. 22-26lbs is the sweet spot for me. Highly recommend. | |
| David Stancil at Backcountry.com | |
"Exquistito!!" | |
| Rating: | ![]() |
| I got the tangerine pack because recent studies conducted at MIT indicate that this color drives the ladies crazy. I can barely climb a mountain without getting attacked. I also like it because it is thoughtfully designed, well made and with a 30lb load, very comfy. It is also important to note that Andy Warhol wore a pack like this when he discovered Campbell's soup. The hip belt is both functional little zip pockets for all of my condoms and comfortable. I researched long and hard for a pack this size that would meet my needs within a reasonable price range and this one did not disappoint. Moosejaw service was outstanding as well. A blond woman in a mini skirt delivers the package ri | |
| David at Moosejaw on 09/10/2007 | |
Great pack with all my favorite features in a light package | |
| Rating: | ![]() |
| I travel the world by bike and till now used a custom made pack with a host of little features like zippered compartments in the waist strap to keep ready cash and mesh back to keep cool in hot climates. Being unable to find someone to rebuild my worn out custom pack I checked what was available ready made. To my delight the Osprey 40 had virtually everything I had in my custom job at lower weight and increased size. My only disappointments were minor.The broad top limits the rear vision from my bike mirror. It doesn't have a built in rain cover but this is easily remedied by carrying one in the large main compartment. | |
| Herb Kavet at Altrec on 10/25/2009 | |
Stockier Torso.... | |
| Rating: | ![]() |
With all its dangling strap ends and a back frame that takes getting use to, Not a bad (2400cu.in.Backpack)..It can surprisingly pack away the gear. | |
| Tim L.R. at Backcountry.com on 04/06/2009 | |
"solid pack with minor pros and cons" | |
| Rating: | ![]() |
| huge props on materials, construction, and quality practical and classic design - this size is PERFECT as an ascent pack. enough for food, layers, and a few safety items. but truthfully ... - too many straps ... too easy to catch on stuff and get caught - the pack straps are a bit too close together on the top and the curvature where the sternum strap is ... when weighted down, gets a bit too rubby and could cause a hot-spot - need access to the bottom. ... and what happened to the single clip buckle on the front like the smaller one? less is more and i liked how the 1 clip design allowed for easier access and less clutter this would make an awesome adventure racing pack ... | |
| Tery at Moosejaw on 07/11/2008 | |
SUFFICIENT.... | |
| Rating: | ![]() |
Its a nice little backpack. But the backpack framing system(Arch on the inside.) Takes up way to much room inside of the main compartment. And waist belt set up is another draw back, One belt would seem to be sufficient and the straping system way to many loose ends dangling and the hydration system(Exterior sleeve)alittle hard getting the water bag in and out of it... It would make a nice little day pack.... | |
| Tim L.R. at Backcountry.com on 05/01/2009 | |