FlyLow Gear Quantum Jacket

Priced: $246.32 - $380.00 Rated:   - 4 stars out of 5 by 11 reviews.
FlyLow Gear Quantum Jacket
Zoom In
Available Colors: $246.32
34% off
Regularly: $378.95
Sierra Trading Post $249.95
33% off
Regularly: $374.48
Christy Sports (2013)
30% off
Regularly: $370.00 $265.95
28% off
Regularly: $374.48
Evo $303.90 - $304.00
18% off
Regularly: $374.48 $379.95
Christy Sports $380.00
Visit our Daily Deals for great products at low prices.
FlyLow Gear Quantum Jacket -

FlyLow Quantum Jacket - Men's:  Flylow’s most waterproof and breathable jacket to date. This everyday hardshell has a removable powder skirt and tougher nylon material than ever before. Plus, it packs down to the size of a cantaloupe.
The Quantum is the toughest and most technical jacket Flylow makes. Our guess: You'll wear it every day whether its dumping snow or you're on a spring tour. It's got a beefy waterproof, breathable shell and 22-inch underarm vents that keep you dry and cool. The powder skirt zips in and out and you can stash a six-pack of whatever in the Junk Trunk pockets (when you're not storing your skins there of course). Check out this video short for some extra intel.
    - Three-layer Intuitive Fabric.
    - Hardshell fabric: 100% nylon.
    - 20k/20k (waterproof / breathable)
    - Fully seam taped, 6 pockets (2 hand warmer, 2 junk trunk inner pockets for skins, 2 chest pockets)
    - Helmet compatible hood with 3 way cinches.
    - Removable powder skirt w/ stash buttons, Powder guard snaps, No bulk cuffs.
    - 16-inch pit zippers.
    - YKK water-proof zippers.
    - Articulated arms.
    - Level 5 Dupont DWR(Durable, Water, Repellent)

Weather and Wind:

  • Powder skirt zips into place to keep snow out of your jacket and pants on deep days
  • Fully seam sealed for complete waterproof protection


  • Zip chest and hand pockets
  • YKK water-proof zippers
  • Pass-through pit zips
  • 16-inch pit zippers
  • Internal center storm flap and zipper garage
  • Zip-off powder skirt with gripper elastic and snap connectors


  • Six pockets give you all the storage you need for small essentials, an extra hat, or goggles


  • Three-layer nylon dobby Intuitive fabric with a waterproof breathable membrane
  • Fully taped seams keep water from leaking in at the fabric seams
  • Intuitive fabric includes a 20k-rated waterproof breathable membrane that allows moisture to escape from within while keeping you comfortable against external moisture and precipitation
  • Drawcord hem
  • Level 5 external DWR coating further adds to the water repellency of the shell fabric

Lining and Layers:

  • Relaxed fit gives you room to move and layer underneath


  • Massive 22-inch underarm vents let you dump excess heat during long hikes or ski tours


  • Helmet compatible hood with 3 way cinches
  • Hood pulls easily over a ski or climbing helmet to protect your head and neck from the elements


  • Made in China


  • Brushed chin guard
  • Articulated arms
  • Slim profile cuffs stay out of the way of your glove cuffs and hands
  • Removable powder skirt w/ stash buttons, Powder guard snaps, No bulk cuffs

Some might call the FlyLow Men's Quantum Jacket an everyday, technical workhorse. Those people would be correct, because this jacket is the toughest and most technical jacket made by FlyLow. Beefy fabric is match to burly weatherproofing and massive underarm vents, an ideal mixture of features for a jacket touted as a one-stop solution for your entire winter. The Quantum Jacket takes on ski tours, technical ascents, massive descents, and tram laps with equal ease—so, how can you resist?

When you're off in the backcountry, it's just you, your friends, the mountain, and your equipment. The Flylow Quantum Jacket is an award-winning piece with features to help keep you warm, dry, and safe when the elements are treacherous. The DWR coating on the nylon Intuitive Fabric™ keeps you dry up to 20,000 mm and, when things get heated as you're climbing up the mountain, the pit zippers can expand to massive 18" openings, allowing in tons of breeze to keep you cooled. Chest pockets and hand pockets allow you to store smaller items that you need to have easy access to, and the internal Junk Truck pockets store the stuff you can't leave at home, or can fit your skins so they can heat up as you make the huge descent down the mountain. You should leave your cat and your worries at home when you explore the backcountry, but you can't leave the Flylow Quantum Jacket.

Christy Sports

 This Flylow jacket is the one with all the awards and accolades.  It's known for its durability, versatility, and for being one of the toughest hardshells on planet earth. A waterproof and breathable shell, the Quantum is good for all conditions.  Its large underarm vents keep you cool while hiking and a removable powder skirt blocks snow on deep days. Large, internal Junk Truck pockets easily store all that stuff you can’t leave home without.

- High performance DWR (Durable Water Repellent)

- Fully seam taped.
- 7 pockets.
- Helmet-compatible hood.
- Removable powder skirt 
- Powder guard snap connectors 
- No Bulk Cuffs.
- YKK waterproof zippers.
- Average weight: 656 grams.

Sierra Trading Post
Flylow's Quantum jacket is made for storm skiers who charge under clear skies and in blizzard conditions. This three-layer waterproof breathable hard shell has waterproof zippers and a zip-off powder skirt, so it's ready for whatever the sky throws down.
Want it cheaper? Set your own price.
Enter the price you want to pay and we'll email or text you if we find a store that will sell it for that amount:
Price: $
Your email:
Cell number: (optional, for text message)
Learn how offers work...
6 people have already set their own price.
Average Price History: Price History
Review RatingNumber of Reviews
Available Color(s):Indigo, Mahogany
Breathable rating:20,000
Clothing Fit:Relaxed Fit
Hardshell fabric:100% nylon
Material:20K / 20K Waterproof Breathable Membrain, Three-layer Intuitive Fabric
Pit Zips:Yes
Pockets:6 Pockets (2 Hand Warmer, 2 Junk Trunk Inner Pockets for Skins, 2 Chest Pockets)
Seam Taped:Yes
Waterproof Rating:20,000mm
Weight:23 oz / 656g
Compare specifications to related products.

Subcategories of Jackets & Vests:

FlyLow Gear Quantum Jacket Reviews:

Positive Reviews:

I just spent the weekend living in the Flylow Quantum Jacket. I was looking for a basic roomy shell for layering and handling a range of conditions (MN). Went from hockey rinks, to running errands, snowblowing, and shoveling. Didn't get hot, didn't get cold and only wore a heavy wool sweater for insulation. My biggest problem in coats is fit, and I took a chance and ordered the Quantum = homerun. I'm 6'2, 250 lbs , 36" waist with wide shoulders, longer torso, and long arms. The XXL fit for me is perfect and I have plenty of room for one/two layers of insulation. Breathability of the coat was in a word = awesome. A couple features that I really like are two ext. chest pockets and the lower waist pockets are cavernous. One clever design is how the snow skirt ends tuck into triangular pockets and snap in place. The Red coat with tan zippers looks good, received several compliments on the jacket to my surprise. The red is on the darker side compared to what THF or Marmot would use, but it's a nice change from generic safety red most clothing companies use. Not as bright as the Backcountry website shows. Fabric has a nice finish, but is a little on the crunchy side noise wise.
"if you have the means, I highly recommend it"

tcr4591996 at on 12/10/2012

Traditionally I always have used Gore-Tex in Marmot products up until a few years ago. I had some durability issues with pants in particular and was extremely happy with how my Flylow Magnum pants withstood the bushwhacking and backcountry abuse. The fit is baggier than I was used to, but after I began using it I realized the fit was much nicer to layer with if I wanted and was much more comfortable. It is not 100% waterproof, but its just about as close as you can get. I've only had water come through the shell one day skiing in a rainstorm for 6 hours. The features of the jacket are great. Perfect pocket placement, a great powder skirt, plenty of storage, and the only jacket I have ever owned that I can actually ski with the hood over my helmet. The shell has a ton of versatility and can be used almost all year in foul weather. Very breathable on the skin track! Phenomenal product.

Ryan Gibbs at on 11/08/2012

I have been free skiing all of my career and rarely have I come into a jacket of this stellar quality and durability. Great technical design for the serious skier who never wants to think about a jacket failing while touring (my past 2 jackets were from Salomon - epic fails). I am 5'9 - 185lbs - 42' chest - medium is the fit with plenty of room for layers or sweater jacket. I typically see about 60 days a season and this jacket will be with me for at least 5 seasons. Light, durable, taped zippers (tough also), killer skin pockets inside(smart), 2 deep front pockets for ipod/radio, powder skirt with real metal snaps (not that plastic sh$t that salomon uses). The calibre of this jacket rivals that of Arc'teryx but at fraction of the cost. Minimalist design yet just what I needed. tx Flylow! c

chrp407812 at on 03/17/2013

I wasn't too sure about this coat when I bought it. I really wanted to buy an acteryx coat, but could not justify spending twice the $. I had never heard of "Flylow" before, but I have been very impressed with their commitment to quality, and making a coat that I feel like I can do anything in. This coat has changed the way I layer and prepare myself for spending a full day in the mountains. These guys really do spend time designing their products. The other mid layer coat and vest fit perfectly under the quantum and keep me toasty on the way down and well vented on the way up. Well Done team Flylow!

evalwyo1499556 at on 10/25/2012

I have last years (green). It is VERY green. I like the thought that went into this jacket: great pockets, huge pit zips, capacious hood. For a hardshell, it has a "soft hand" and feels a little stretchy: much less crinkly than my older Arcteryx. My only 2 "gripes" (which aren't really gripes):
1) I like a small sleeve pocket, which this doesn't have
2) the fit is a bit baggier than I'm used to. I'm 5'7" 150 lbs and I swim a little in the M although of course that's great for layering warm stuff.
Good job!

panditah134798 at on 02/06/2013

Well it's a solid jacket; good for layering under, fits to size and keeps me dry. Still, I had to treat it regularly to keep water from saturating the outer fabric...far more than I did with my last jacket (Arc'teryx). What bugged me most was the lack of pockets, particularly a sleeve pocket. I'd recommend it to most people, but I'm just tend to nitpick these things. I'll be upgrading to another fully waterproof jacket, but will keep the quantum for hiking/skinning, as it does breathe and vent exceptionally well.

csap84891 at on 05/21/2013

Full Disclosure, I'm a Flylow athlete. I've been using Flylow jackets since the original Lab Coat (Flylow's first hard shell) and the Quantum is by far the best jacket to date. I put over 100 days on mine last year and it will easily go another 100+.
Pros: Durable, waterproof, great fit, huge inner pockets (i use these for skins, or beers), huge pit zips,and helmet compatible hood.
Cons: Can't think of any
Sizing: I'm 5-9, 155lbs and I wear a large

Tele Paul at on 10/26/2012

We have been designing and making clothing for 7 years now and this is the toughest, lightest and best 3L shell we have made. I am 5'11" and 180lbs and the LG fit great. Plenty roomy for layering with a puffy on a cold wet day and not too big for touring with just a base layer. The huge vents come in handy on the touring days and toe powder skirt zips in and out depending on depth...

dan460568 at on 10/29/2012

This is a bomber coat that is both aesthetically pleasing and functionally sound. Just the right amount of bells and whistles without sacrificing the simplistic function that it's shooting for. As far as hardshells are concerned, this is my favorite jacket to date and I will likely only replace it with another Quantum. Likely not for a good few years though because these are built to last.

Alex at on 10/20/2013

Negative Reviews:

after having my car broke into and losing my fav jacket I decided to try this Fly low jacket. The stuff looks good and the features and fit are really great. Just got back from an early season Mammoth trip where I used the jacket for four days on the hill. Got home and decided to wash it as I got pretty hot and steamy in the thing (doesn't breath too well). I was surprised to see the inside taping coming undone in a few spots. Cool stuff but ain't so cheap anymore and at $370 you'd think it would be some serious quality. Get it together FlyLow!

Micah Barzak at on 12/21/2012

Neutral Reviews:

Seemed like a decent quality jacket, but I had to return it because of the fit. I'm 5'8, 160lbs and i ordered the medium. It was roomy in the torso but too tight around the neck when zipped all the way up.

mikp36276 at on 10/22/2012