Mountain Hardwear Men's Nitrous Jacket

Priced: $138.99 - $220.00 Rated:   - 5 stars out of 5 by 6 reviews.
Mountain Hardwear Nitrous Jacket -
FEATURES of the Mountain Hardwear Men's Nitrous Jacket.
SPECIFICATIONS of the Mountain Hardwear Men's Nitrous Jacket.

Lining and Layers:

  • Full elastic cuffs slide easily over layers to seal in warmth
  • Micro-Chamois™-lined chin guard prevents zipper chafe


  • Standard fit


  • Dual hem drawcords seal in warmth
  • Quilted Construction Holds Insulation in Place


  • Q Shield water resistant 800 fill down


  • Two front hand-warmer pocket
  • Jacket Folds Away in Own Pocket


  • 30D ripstop
  • Compact, stowable design

You love down, but high humidity or permeating moisture can turn its fluffy warmth into a useless pile of fathers. Fear not, the Mountain Hardwear Nitrous Jacket uses water-resistant down to push back against the effects of moisture. The 800-fill down's Q Shield treatment infuses each fiber with a permanent water repellent to help maintain loft and warmth retention even in moist, damp conditions—you get the awesome warmth-to-weight ratio of down without its normal susceptibility to moisture.
Traditional horizontal baffling across the lightweight 30D ripstop holds the Q Shield down in place, and dual hem drawcords team up with full elastic cuffs to seal out cold air. Compressible design means the entire jacket fits neatly into one of the hand pockets so it's easy to haul and easy to pack.
The Mountain Hardwear Nitrous Jacket provides the warmth of a heavy winter coat with the lightweight performance of 800-fill Q.Shield™ Down. Designed for use in all kinds of weather, the filling insulates and retains its loft even when wet. A quilted design keeps the down from shifting and ensures even warmth. The jacket is highly compressible and easy to pack. You can even fit it inside its own pocket. Additional features include two handwarmer pockets, elastic cuffs to seal in warmth and dual hem drawcords to keep drafts out. Designed for superior comfort, the jacket has a Micro-Chamois™ lining inside the chin area to prevent chafing at the zipper.

Offering a high warmth to weight ratio, Mountain Hardwear's Nitrous Jacket features Q.Shield™ DOWN water resistant 800-fill down insulation in a non-hooded jacket style. Will retain warmth when wet from the inside out.
Get 800-fill, Q.Shield DOWN warmth without the bulk. Boasting an outstanding warmth-to-weight ratio, the low-profile Nitrous Jacket is fortified with 800-fill Q.Shield DOWN that retains critical loft and warmth even when wet. Stow it in its own pocket for unbeatable packability. Low warmth to weight ratio hybrid jacket with Q Shield water resistant 800 fill down in a non hooded jacket style.

• Apparel Fit: Standard.
• Weight: 12.6 oz. / 356 g.
• Center Back Length: 28 in / 71 cm.
• Materials: 30D Ripstop / Q.Shield Down

Mountain Gear
Beat the chill and stay cozy warm in Mountain Hardwear's Nitrous Jacket - an ultra lightweight down shell that provides the perfect amount of water-resistant 800-fill Q-Shield down insulation to warm up your core. (closeout)

Mountain Hardwear's Nitrous Jacket offers warmth without the weight, providing just the right amount of down to keep you warm.

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Average Price History: Price History
Review RatingNumber of Reviews
Also available for: Women
Apparel Fit:Standard
Back Length:Center Back Length
Body:30d hi-Five ripstop (100% nylon)
Center Back:28 " / 71 cm
Center Back Length:28 in / 71 cm
Clothing Fit:Regular Fit
Cuffs:Full Elastic Cuffs Seal in Warmth Over Layers
Fabric:Body: New Nitrous Shell 30D Ripstop (100% Nylon)
Fabrics/Materials:30D Ripstop
Fit:Standard Fit
Hem:Dual Hem Drawcords
Insulation:Q.Shield Water Resistant 800-fill Down
Insulation Type:Down
Material:New Nitrous Shell 30D Ripstop (100% Nylon); Insulation: Q.Shield DOWN 800-fill
Pockets:Two Front Handwarmer Pockets
Type of Waterproofing:Q.Shield's 800-fill water resistant down
Weight:12.6 oz. / 356 g.
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Subcategories of Jackets & Vests:

Mountain Hardwear Nitrous Jacket Reviews:


Warm jacket, unexpectedly baggy

Having owned many Mountain Hardwear products in the past, I have some expectations about quality, durability and fit. This jacket is well made, warm and wind resistant. I haven't had the opportunity to test water resistance of the Q shield down yet, but I trust Mountain Hardwear's reputation in producing quality garments. My only complaint is the fit. I'm accustomed to Mountain Hardwear jackets having an athletic fit, and expected to use this as an insulation layer under a soft shell for colder winter days. I was very surprised that the fit was so baggy and long that it does not fit well under most shells. It is a plus that I can wear additional layers under this jacket, but not what I expected when I ordered it.
blaw at Mountain Gear on 11/11/2013

I bought the Nitrous a couple months ago, just as it started to get really cold here in IL. I am 6'7 /285lbs and bought the XXL as you might imagine. Jacket is the perfect length in the arms and torso, which is where most jackets fail me on fit. Its incredibly light but does a remarkable job blocking most of the wind. I would say its comfortable, with a long sleeve shirt under it, down to about 20-25 F especially if you cinch the waist cord- which is a definite plus on this jacket. I've been very impressed overall. Its my pretty much every day winter jacket now.

Jeff at on 01/30/2014

I was comparing this jacket to The North Face Thunder Micro and the North Face was the one I ended up keeping. Both are 800 fill but the Medium Thunder Micro fit my 5' 8" 150 pound frame just perfect. The Thunder Micro also had more pockets and just looked better.
The Shark grey is a good color but the zipper is BLAZE ORANGE in real life. The pictures don't do this obnoxious colored zipper any justice. The cuffs are the same blaze orange color. If the orange was a bit muted like a burnt orange, this jacket might have had a spot in my closet.

Toneaero at on 11/23/2013

Nice light weight jacket with excellent weight to warmth ratio. Very packable. Over all fit is great and fairly true to size. I'd say the body of the jacket is good but the length is a little long for my taste. Though it does fit me well (I'm 6'4" and 190lbs).

ColoCroat at on 12/04/2013

This is a great jacket. Very lightweight, packable, and warm.

wisp706386 at on 12/05/2013

Warm, light, packable, perfect for cold winters!

kgrp318133 at on 01/03/2014