Two Arc'teryx Softshells for Different Cold-Weather Demands
Arc'teryx offers two men's softshell jackets that share a regular fit and stretch-woven construction but serve distinct roles in your layering system. The Gamma MX Hoody is the brand's warmest softshell, built for alpine hiking, climbing, mountaineering, and backcountry skiing when a lightweight or midweight jacket isn't enough. The Gamma Jacket (the updated Gamma LT) is the most all-around softshell, designed as a versatile layer for everything from wind protection to abrasion resistance during rock climbing.
Choosing between them comes down to how much warmth you need and whether you want a dedicated cold-weather outer layer or a flexible piece that works across more conditions.
Key Specs at a Glance
- Gamma MX Hoody Men's: Fortius 2.0 60d Stretch Softshell Fabric, 84% Nylon, 16% Elastane with 100% Polyester Fleece Backing for Additional Warmth The fleece backing makes this the warmest softshell in Arc'teryx's line, suited for coldest-weather activities.
Gamma MX Hoody Men's - Gamma Jacket Men's S26: Recycled Wee Burly Double Weave 4-Way Stretch Fabric with Brushed Backer, 88% Nylon, 12% Elastane The double weave provides abrasion resistance and moisture wicking without the extra insulation of a fleece backer, making it more versatile across seasons.
Gamma Jacket Men's S26
Warmth and Intended Use
The Gamma MX Hoody is lightly insulated with a polyester fleece backing and weighs 20.6 oz (585 g). It's designed for your coldest alpine outings—think winter climbing, mountaineering, and backcountry skiing. It can also serve as a mid-layer under a ski jacket for lift skiing or as a standalone outer for spring skiing and snowboarding.
The Gamma Jacket is lighter at 13.9 oz (395 g) and uses a brushed backer for soft comfort and moisture wicking without significant insulation. It's meant for when a baselayer isn't warm enough and a waterproof hardshell is too much. Wear it as a wind jacket, mid-layer, or outer layer for extra abrasion protection while alpine rock climbing.
Weather Protection and Features
Both jackets are wind and weather resistant with a DWR finish, but the Gamma MX Hoody adds taped seams and a fully adjustable climbing-helmet-compatible StormHood with a laminated brim. It also has shaped cuffs with low-profile elastic at the wrist and an adjustable hem drawcord.
The Gamma Jacket includes a stand-up collar, soft brushed-lined collar, laminated chin guard, and shaped cuffs with partial elastic. It has two zippered hand pockets and two zippered chest pockets, plus gusseted underarms for mobility. Both jackets are breathable and stretchy, but the Gamma MX Hoody's fleece backing reduces breathability slightly in exchange for warmth.
Gamma MX Hoody vs Gamma Jacket: Which Should You Choose?
- Choose the Gamma MX Hoody if...: You need a warm, insulated softshell for alpine winter activities like climbing, mountaineering, and backcountry skiing. The helmet-compatible hood and taped seams make it a better cold-weather outer layer.
- Choose the Gamma Jacket if...: You want a lightweight, versatile softshell for three-season use—wind protection, abrasion resistance while rock climbing, or as a mid-layer under a shell. It's the more all-around choice.
What the Supplied Information Doesn't Cover
- Gamma MX Hoody Men's: No specific care instructions or weather protection ratings are provided in the catalog evidence. While both jackets have a DWR finish, the exact level of water resistance or recommended washing method is not confirmed in the supplied data.
- Gamma Jacket Men's S26: No thermal performance ratings or specific temperature ranges are listed. The Gamma Jacket's warmth is described as a 'little extra' compared to a baselayer, but exact temperature suitability is not specified.
