Arcteryx Men's Gamma MX Hoody
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Arcteryx Men's Gamma MX Hoody

Arcteryx Men's Gamma MX Hoody is rated 5.0 out of 5 by 20.
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4.9 Star Rating
From $260.99   $349.00
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Product Description Item No.   10220041

Award Winner - Alpinist Mountain Standards Award

Award Winner - Outdoor Magazine's Editor's Choice Award

The Arcteryx Men's Gamma MX Hoody is an incredibly comfortable soft shell mid-layer. Offering great mobility, wind resistance and warmth while being exceptionally breathable, the Fortius 2.0 textile fabric is stretchy and air permeable, perfect for tons of conditions/activities. Sporting an athletic, hip-length fit with anatomical shaping, articulated elbows and gusseted underarms, the Gamma MX Hoody will fit you like a glove. Superb as an insulating layer on mountain expeditions, or on a trip to the zoo in the fall to see what the bears are up to (I swear, they're always up to something), this jacket will do it all.

Products on Sale are Discontinued Styles or Colors.

FEATURES of the Arcteryx Men's Gamma MX Hoody

  • Mid-weight Fortius 2.0 softshell fabric with DWR finish sheds moisture and is highly wind resistant while staying breathable
  • Helmet compatible StormHood designed to provide the ultimate protection in wet or cold weather without restricting movement or visibility
  • Fortius 2.0™ fabric is membrane-free, air permeable and utilizes four-way stretch, making this hoody ideal for a number of activities
  • Articulated patterning and gusseted underarms for added comfort and increased freedom of movement
  • Two hand pockets and two chest pockets, laminated sleeve pocket with laminated zipper
  • Soft brushed-lined collar and stretch woven cuffs add comfort
  • Laminated, drop back hem with adjustable draw cord keeps the cold off your back

- + Product Specifications
Manufacturer Warranty: Lifetime
Product Technology: DWR
Weight: 24.2 oz
Disclaimer: We only ship this brand to US Addresses.
Hood Type: Helmet Compatible, Fixed
Jacket Shell Fabric: Polyester / Nylon / Elastane
Breathability: Good Breathability
Fabric Weight: 160 g / m2
Jacket Fabric: Polyester / Nylon / Elastane
Exterior Pockets: 5
Features: Helmet Compatible Hood, Hood, Adjustable Drawcord Hem, Water-resistant, Drop Back Hem
Gender: Mens
Best Use: Backcountry Skiing, Ice and Mixed Climbing, Hiking, Backpacking, Mountaineering and Alpine
Jacket Length: Hip
Fit Type: Slim Fit
Insulation: Synthetic
Collection: Mountain Performance
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 Love, Love, Love it I bought this model jacket last year for my wife, and she loved it so much that I thought I'd give it a try myself. Initially, I was hesitant to purchase such a thin soft shell, but after reading many reviews about this jacket I decided to pull the trigger. I have many Arc'teryx LEAF Products, so I know that quality is a definite. After receiving the Gamay MX Hoody, I found that I've worn it everyday for the last two weeks. The only drawback to wearing this jacket are the sleeves. The sleeves are slim, and makes it difficult to put on thicker items under it. Other than that, this jacket is an excellent product.
Date published: 2015-12-20
Rated 5 out of 5 by from go-to shell layer I usually grab this when the weather is looking a little chilly (below 20s; I wear it over a thermal layer) or when it looks like it's going to rain or snow out. Paired with a great base and thermal layer, the versatility of this jacket amazing. I feel comfortable from about 0 degrees F to the 50s (once again, with a good base and thermal layer). I haven't been in anything below 0, so I can't say anything about that; I'd suspect that you'd begin to feel quite chilly if you're just sitting or standing around, but it'd still be good if you're doing something active.,,,,The jacket seems durable and has performed quite well thus far. If there seem to be any major flaws in construction down the road, I'll come back to update this.
Date published: 2015-02-28
Rated 5 out of 5 by from Great all-around protection This jacket is perfect for low and high activity days that are slightly above-freezing temps. You can definitely wear it when its colder, just with another layer underneath. Waterproofing is amazing, and lots of pockets for storage. The fit is slightly off for me (I'm 6 ft tall and 170 lbs, long torso and long arms) - its maybe an inch too short around the waist and the upper arm area is a bit baggy, but still sits nicely whether its zipped up or not. The hood is better than any other jacket I've owned, with the tightening technology being on-point.
Date published: 2016-11-15
Rated 5 out of 5 by from Love this jacket. Little snug through the shoulders and the fleecy interior makes it a bit of a struggle to layer sometimes... can't find anything else to complain about. Beautifully made, lot's of pockets, fast becoming my favorite softshell. I would call this moderately wind-resistant as it is not as windproof as Windstopper--about perfect for me as I tend to run hot.
Date published: 2015-12-23
Rated 5 out of 5 by from Great all around jacket! I have had this jacket for a year now and i am very happy with it. It is what i always grab when i don't know what the weather is going to do. It sheds light rain and mist great, does great in the snow, holds your body heat in when your are working out and stretches nicely for climbing or biking. The jacket blocks wind until it gusts above around 30mph so its not super windproof but still a lot better than a fleece.
Date published: 2014-08-28
Rated 5 out of 5 by from the perfect jacket for fall/pre-winter season w/ little drizzle in the city This soft shell jacket is the perfect jacket for fall and pre-winter season in California. I really like Arcteryx soft shell jackets because they are so comfortable to wear and they last very long. Since the temperature is quite low in the early morning and late evening in Cali, so I have this jacket with me when chili and it protects me from cold. The design is also suitable for casual wear.
Date published: 2014-10-06
Rated 4 out of 5 by from nice jacket for activities in decent weather Pros: 1. Super comfortable for various activities 2. Looks good in town 3. The pockets are really convenient Cons: 1. Not as water resistant as you might hope, you will get soaked up pretty quickly in a moderate rain 2. Not great for strong wind The cons are by its design and i wasn't really complaining. Overall, it's a good jacket for decent weather and for commuting.
Date published: 2015-12-18
Rated 5 out of 5 by from Unbelievable quality I have had this jacket for a little over a year and I have loved it. The storm hood is fantastic and very well designed. It has performed well in every circumstance that I have put it in. This jacket has treated me very well and will for many years to come. I would highly recommend this jacket to anyone looking for a high quality soft shell jacket.
Date published: 2017-03-05
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- + Size Guide

Men's Jackets, Shirts and Tops
SIZE X-Small Small Medium Large X-Large XX-Large
Chest 36" 38" 40" 43" 46" 50"
Waist 29" 31" 33" 36" 39" 43"
Hip 36" 38" 40" 43" 46" 50"
Sleeve Length 32" 33" 34" 35" 36" 37"
Numeric Size 36 38 40 43 46 50

• Arc'teryx recommends you calculate your body measurements using the info in the Measurement Guide below before selecting a product size. The measurements provided in their size guides refer to your body measurements unless otherwise specified.

• Check the fit type in the product FEATURES and SPECIFICATIONS and refer to the Fit Guide below to ensure you are ordering a product for the correct end use.

Men's Pants
SIZE X-Small Small Medium Large X-Large XX-Large
Waist 29" 31" 33" 36" 39" 43"
Hip 36" 38" 40" 43" 46" 50"
Length (Short) Subtract 2"
Length (Regular) 30 1/2" 31 1/8" 32 3/8"
Length (Long / Tall) Add 3"

• Please note that the actual pant length may vary slightly from the info above, depending on the intended end use of the product.

Men's Numeric Pant Sizing
SIZE 28 30 32 34 36 38
Waist 28" 30" 32" 34" 36" 38"
Hip 35" 37" 39" 41" 43" 45"
Inseam 32" 33" 34" 35"

• Several models of Arc'teryx pants are sized numerically and available in different inseam lengths. You will see these sizes reflected in the options in the Select a Size drop down menu for particular products.

• For all other pants available in numerical waist sizes where the inseam length is not specified, the inseam lengths provided above apply.

SIZE Small / Medium Large / X-Large
Head Circumference 21.7 - 22.4" 22.8 - 23.6"
Men's Gloves
SIZE X-Small Small Medium Large X-Large
Hand Width 7.6 - 7.9" 7.9 - 8.2" 8.2 - 8.6" 8.6 - 8.9" 8.9 - 9.3"
Hand Length 7 - 7.2" 7.2 - 7.5" 7.5 - 7.7" 7.7 - 8" 8 - 8.2"
Unisex Gloves
SIZE X-Small Small Medium Large X-Large
Hand Width 7.3 - 7.6" 7.8 - 8.1" 8.2 - 8.6" 8.6 - 8.9" 8.9 - 9.3"
Hand Length 7 - 7.2" 7.2 - 7.5" 7.5 - 7.7" 7.7 - 8" 8 - 8.2"


Chest / Bust - Measure around your chest / bust, holding the measuring tape under your armpit.

Waist - Measure around the natural waist, which is often the narrowest part of your waist.

Hip - Measure around your hips at the widest part.

Sleeve Length - With your arms in a slightly bent position, measure from the center of the back of your neck, along the length of your arm, to the wrist.

Inseam / Pant Length - From a standing position, measure from your crotch to your ankle.

Head Circumference - Measure the full circumference around the widest part of your head.

Hand Length - Measure from the tip of your middle finger to the base of the palm.

Hand Width - Measure the circumference of your hand around the knuckles, excluding the thumb.

• Please note that all the info provided above refers to body measurements, and NOT the dimensions of the garment.


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. Garments in this fit category when constructed using Arc'teryx's heavier-weight AR and SV fabrics also perform very well as mid layer pieces, and users should consider selecting a larger size to accommodate a base layer underneath if the intention is to use this layering system as a mid layer option.

Trim Fit - Trim-fitted garments share the motion-friendly traits with Arc'teryx "Athletic" fit garments, but are patterned with lower volume for reduced bulk. These close-fitting pieces layer well under other garments.

Athletic Fit - This is the "Arc'teryx Standard" fit. These complete patterns utilize anatomical shaping and gussets to enhance motion by minimizing excess bulk. Easy layering under or over each item extends seasonal versatility and comfort.

Relaxed Fit - Relaxed fit garments rely on higher volume patterns and a reduced amount of articulation to offer roomy mobility.

Expedition Fit - Cut roomier than the Arc'teryx Athletic fit and suitable for winter/extreme conditions, Expedition (XPD) fit garments are cut larger to accommodate multiple layers without binding or restricting movement.

• You can find the fit type and additional fit info for Arc'teryx styles in the product description FEATURES and SPECIFICATIONS.

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