Arcteryx Men's Gamma Lt Jacket

Arcteryx Men's Gamma Lt Jacket

Arcteryx Men's Gamma Lt Jacket is rated 4.3 out of 5 by 17.
  • y_2017, m_5, d_19, h_13
  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_17
  • loc_en_US, sid_10300106, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_moosejaw
4.4 Star Rating

Select a Size Select a Color

When will I get my stuff?

"In Stock" means this item is ready to ship. Orders placed before 3pm EST using Ship Speeds of 1-5 Days will ship SAME DAY. Orders using 5-10 day shipping will ship within one business day.

"Ship Date" means we'll special-order the product for you and this is the date we expect your shipment to leave our warehouse.

"Oversized" means the item is too large for 5-10 Day Shipping and can only be shipped via 4-5 Day Shipping. Additional shipping charges may apply.

"Freight" means the item is too large for 5-10 Day Shipping and must be shipped by truck freight for an additional fee. Someone must be present to accept delivery so we will call to schedule.

If you have any questions, please Live Chat one of our sort of smart customer experience personnel. If you are one of the few that enjoy speaking to real human, please call 877-666-7352

Add to Cart
+ earn up to $22.50 in Rewards
Moosejaw Rewards: You earn MJ$10 for every $100 you spend on or at our shops (MJ$2.50 for discounted items).

So if you buy a $200 jacket at, you can turn around and get a $20 tee using your Rewards on

You are signed up automatically when you give your email address and you’ll earn points as you shop. So easy.

For full program info, see:
Rewards Program Details
Add to Wish List
- +
Product Description Item No.   10300106

The Arc'teryx Men's Gamma Lt Jacket is a lightweight softshell jacket for protection from wind and weather. Hike and climb your way around the outdoors, heck, even stroll around town, and this'll prove to bring light weather resistance along the way. Stretchy, breathable Wee Burly Double Weave fabric is a nylon, polyester and elastane blend that deters mild weather without causing you to overheat. The exterior is treated with the Arc'teryx Nu water repellent treatment, so moisture beads up and rolls right off, preventing rain or snow from soaking in.

FEATURES of the Arcteryx Men's Gamma Lt Jacket

  • Lightweight Wee Burly Double Weave makes this a much lighter jacket than previous versions
  • Collar height provides additional protection from wind and weather
  • Vislon front zipper with wind flap, No Slip Zip works like a series of speed bumps keeping the main zipper from self-opening
  • Two hand pockets and one internal laminated chest pocket
  • Stretch gusset cuffs
  • Adjustable hem drawcord seals out cold
  • High degree of abrasion resistance
  • Weather resistant
  • Moisture-resistant outer face fabric
  • Wind resistant
  • Highly durable top performance materials but designed with a streamlined minimalist set of features to provide very light weight
  • Highly breathable textiles with stretch and differing degrees of thermal efficiency that can be worn as water-resistant outer layers
  • Fabric blends wind resistance with air permeable comfort has elastane fibres for built-in two way stretch and is exceptionally durable for its weight
  • DWR finish helps repel water from fabric surface
  • Hip length hem and streamlined patterning allow it to lie comfortably under a harness or pack belt
  • Mechanical stretch textile for unrestricted mobility
  • Articulated patterning for unrestricted mobility
  • Gusseted underarms
  • Athletic fit for a slimmer more flattering profile
  • Laminated hem
  • Embroidered logo

- + Product Specifications
Jacket Fabric: 56 % Nylon, 34 % Polyester, 10 % Elastane
Disclaimer: We only ship this brand to US Addresses.
Breathability: Moderate Breathability
Exterior Pockets: 2
Internal Pockets: 1
Product Technology: DWR
Type of Waterproofing: DWR
Weight: 15 oz
Windproof: Yes
Gender: Mens
Features: Internal Pockets, Packable, Windproof, Water-resistant
Best Use: Mountaineering and Alpine, Travel, Backcountry Skiing, Trekking, Climbing, Hiking
Jacket Length: Hip
Fit Type: Regular Fit
Insulation: None
DWR tech

Durable Water Repellant
DWR (Durable Water Repellent) is a coating that is applied to fabrics which makes them water-resistant, or hydrophobic. A DWR finish doesn't interfere with breathability, which makes it perfect for adverse conditions in the backcountry.

Rated 5 out of 5 by from Very tough fabric, good for layering I've had this jacket for a couple of years now and it's my favorite. It still looks new, although I've used it a lot and climbed many routes with it. The fabric is really tough and durable. I like the overall minimalist and practical design. The jacket is not insulated, but it blocks wind very well and still gives you some warmth. If it gets cold, I just add layers under it. In summertime I use a t-shirt and the jacket. Most softshells are too hot to climb with, but not this one, unless the temperature gets close to 20 degrees Celsius, and then you wouldn't want to wear a jacket anyway. Huge pockets that are easy to access are a great advantage.
Date published: 2011-09-12
Rated 5 out of 5 by from Fantastic jacket I've had this jacket for more than a year now, and it has become my undisputed favorite. I fear I've become addicted to Arc'teryx now. My jacket (black model) still looks brand new, no rips, stains, undone seams or noticeable wear. Other jackets quickly gets worn on elbows and sleeves, but not this one. Its fairly water and wind resistant, which makes it great for layering. I use it everyday in the north of Norway, just with thicker mid-layer during winter. And I love the streamlined athletic fit. Makes me want to buy another one just in a different color, or perhaps its LEAF counterpart the Drac jacket :) I'm going to Thailand now(rain season), and I just can't leave this jacket at home, after all it doesn't take much space :)
Date published: 2012-09-14
Rated 5 out of 5 by from extremely versatile... I have only had this one for a few months but have found it to be extremely versatile. First, I'm 6'4", 200lbs (34"waste; 44" chest; 36"sleeve) and the large fits me perfectly. I have used it in weather ranging from 50-degrees with a t-shirt underneath to 25-degrees with a warm base layer underneath. I don't have a lot of extra room with the large, so for me, a close fitting base layer is necessary. I've used it for running, hiking, and climbing in a variety of weather. It breathes extremely well, which is rare for a soft shell that also sheds water as well as this one does. The only other soft shell I've had was from Marmot. It doesn't fit nearly as well and thus I haven't worn it much. All the stuff from Arc'teryx is relatively expensive but I haven't found anything that is better fitting or better quality.
Date published: 2011-10-28
Rated 4 out of 5 by from Difficult sizing Great jacket, material is perfect. However as mentioned by other reviewers, sizing can be an issue. More specifically for me the arms. I have a few large Arc shirts, large Gamma MX hoody and a medium Alpha SL jacket. I tried a large and medium. Medium was too tight in the pits area and upper back and the large's sleeves were too long. Kept the large but need to roll up the sleeves. The sleeve design on the MX was perfect since it kept them from dropping down but this design does not (altough the material is different). otherwise very functional jacket. Wish I would have waited for the new colours.
Date published: 2015-06-13
Rated 5 out of 5 by from Perfect all around jacket I have now owned this jacket for around 2 years and absolutely love it. I originally thought I would use it primarily for climbing/outdoor pursuits in milder clims, but liked it so much more than my other options that it has evolved into my go to jacket for everyday. The fabric is incredibly durable, with no significant sign of wear after continual use for two years. The water repellency has started to fade a bit in dirtier areas where skin oils reek havoc like sleeve and neck cuffs, but overall I have been very impressed with its ability to bead water (this is a softshell after all). I wouldn't trust it in a downpour, but it will keep you plenty dry in a light drizzle. The jacket material has great stretch and breaths well. I now bike into work in mine 200 days or better a year. Zip up the pockets if it is on the cool side but open them up and the mesh lining provides a great vent. The longer cut in the back is also nice to protect one from road nastiness thrown up in the rain. The fit is relatively snug (especially wrists and underarms) so purchase a bit bigger if you are planning on layering, but personally I feel the beauty of this piece is you can wear it on a cool summer evening over a T-shirt or over a long sleeve flannel in the fall and as long as you stay moving it is more than enough right down to 40 F. Again, love the jacket, still get jealous comments from friends about it on regular occasion. Will replace it immediately if I ever manage to trash this one, which will be a hefty endeavor.
Date published: 2011-09-24
Rated 4 out of 5 by from Super nice if it fits you! I ordered both a small and medium of the Heron colour. I cant say much about long term usage but at a first impression the material felt very tough. tougher than i was expecting for sure. i wouldn't worry at all about ripping the fabric with regular use. Unfortunately i am an inbetweener for arctery softshells. i also tried small and medium with the gamma mx jacket but for both the small was too tight in the armpits and while a medium for the armpits and chest was good, there was too much bulk at waist and hips. i had to return them unfortunately. I guess me and arcteryx softshells arnt meant to be! But i wanna help you guys with your sizing. Uploaded photos for reference (im wearing the small). and heres my dimensions. doesn't help much when people say what size they got without stating their dimensions. - 5 foot 8 - 39.5" chest - 28.5" waist - 37" hips Everything else fit great on the jacket. it was just those tight armpits. I will either have to grow or shrink if i want to wear one of their softshells. I should mention too that i was worried about it being "waist length" rather than "hip length" but it was fine, especially with the drop back hem. I ordered a squamish hoody now as it has a "relaxed fit", and the gamma lt has an "athletic fit". I hope the pics helped someone out there!
Date published: 2013-03-14
Rated 5 out of 5 by from Winter sub-alpine shell Nearly all of my winter hiking takes place in the White Mountains in New Hampshire. While I'm almost guaranteed to be wearing a hard shell above treeline, before (and after) that point a significant portion of each hike takes place below the alpine zone. It's during these phases that small changes in terrain and weather conditions result in significant fluctuation in body temperature. I found I was frequently adding/removing mid layers or my hard shell depending on my level of exertion, the amount of wind, and whether there was any precipitation. This was getting tedious, and forcing me to stop more often that I wanted to. Although Arc'Teryx advertises this as a 3-season jacket, I've found it's exactly what I was looking for to solve my winter problem. It's not insulated, which means I don't overheat when the hike gets more aggressive. It offers reasonable wind protection when the breeze picks up. It keeps light precipitation from soaking in. It's very breathable. And as a small bonus, the material is stretchy enough that I can keep my sleeves rolled up comfortably when I need to make small adjustments to skin exposure to regulate temperature. But to keep things realistic, this jacket is not meant for high wind, or very cold temperatures. I treat this jacket as an ideal way to keep some of the elements off me when going in just a base-layer is too cold/wet, and even a light mid-layer is too much insulation. Bottom line: Instead of making frequent stops below treeline to adjust my layers, I can wear a base layer plus this jacket for almost the entire sub-alpine portion of the hike. I can make small adjustments by zipping or unzipping the front, and taking the sleeves up and down. In short, the conditions vary a lot more either way before I'm forced to stop and adjust my layers.
Date published: 2011-11-26
Rated 5 out of 5 by from Absolute machine of a jacket- used and abused for 8+ years This softshell is an everyday workhorse. I've worn one on a regular basis from 2005 to 2013. The only major repair it ever needed was a new front zipper after 5 years of wear and tear hiking and motorbiking through South and Southeast Asia as well as East and West Africa. I do wish this one had more pockets like the MX and when it gets very cold, you need an underlayer on this one unlike the MX. With that said, this one is very useful for hiking in chilly and wet climates and won't underheat you. It does fit a little long on the sleeves and doesn't have velcro wraps like the MX. So if the sleeves are long on you, you are sort of screwed and might want to return it and grab one with wrist tightening cuffs. Still, I can't tell you how much use this jacket has gotten and it is still kicking. If you send this in to Arcteryx for repairs every once in a blue moon, it will probably last forever.
Date published: 2014-09-27
  • y_2017, m_5, d_19, h_13
  • bvseo_bulk, prod_bvrr, vn_bulk_1.0.0-hotfix-1
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_17
  • loc_en_US, sid_10300106, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_moosejaw
- + Size Guide

Arc'teryx Men's Jackets

SIZE X-Small Small Medium Large X-Large XXL
Chest 36" 38" 40" 43" 46" 50"
Waist 29" 31" 33" 36" 39" 43"
Hip 36" 38" 40" 43" 46" 50"
Sleeve 32" 33" 34" 35" 36" 37"

CHEST: Measure around the widest part of the chest, holding the measuring tape under your armpit.

WAIST: Measure around the narrowest part of the waist, usually near the belly button.

HIP: Stand with feet together and measure around the widest part of the hip.

SLEEVE: With the arm slightly bent, measure from the center back neck bone, over the shoulder and to the wrist bone.

NEXT to SKIN FIT: These snugly-fitting garments are made with stretch fabrics to fit next to the skin to enhance moisture management and thermal efficiency. Used for base layers which integrate well with Arc'teryx Expedition, Trim, Athletic and Relaxed Fit styles.

TRIM FIT: These trim fitting garments share motion-friendly traits with an Arc'teryx Regular fit style, but are patterned with lower volume for reduced bulk. The Arc'teryx trim fit is sized for a base layer and a trim synthetic or down filled mid-layer.

REGULAR FIT: This is the "Arc'teryx Standard" fit. The complex patterns used utilize anatomical shaping and gussets to enhance motion and eliminate excess bulk. Trimmer than the Relaxed fit with room for a base layer, a light fleece mid-layer and a synthetic or down filled mid-layer.

RELAXED FIT: Relaxed fit garments rely on both articulation and higher volume patterns to provide comfort and mobility. This is a looser fit featuring room for a base layer plus a thick cold weather mid-layer.

EXPEDITION FIT: Expedition fit is suitable for winter / extreme conditions. The larger cut accommodates multiple layers without binding or restricting movement. Their maximum fit with room for a base layer plus multiple, thick cold weather mid-layers.

Free Shipping
Spend $12 in Moosejaw products OR at least $35
in other products and you orders ships FREE!

Moosejaw Rewards
You earn MJ$10 for every $100 you spend on or at our shops (MJ$2.50 for discounted items). That's like getting 10% back in Rewards!

What are you looking for?
Shopping Cart