The brilliant & incredibly versatile Gamma MX Jacket is one of the best mountain softshells available. It performs superbly across a wide range of conditions, fits beautifully & looks fantastic! The Fortius 2.0 fabric used to make the Gamma MX is a membrane free, air permeable, four way stretch woven nylon, polyester & spandex mix laminated to mid loft 4 way stretch fleece. So it’s very stretchy, very breathable, very tough & very weather resistant making it just about the best all mountain softshells. Designed with active users in mind the Gamma MX has a close fitting athletic fit with long arms & gusseted underarm panels for completely unrestricted movement. The high comfortable collar helps to insulate & seal out cold winds & lack of a hood makes this jacket perfect for layering & casual use. Finished off with the usual Arcteryx gorgeousness & featuring two fleece backed hand warmer pockets, two bellows chest pockets & a laminated sleeve pocket for all your essentials. Fortius 2.0 non-membrane softshell fabric Moisture & snow resistant outer face fabric Breathable Lightly insulated Durable Wind resistant DWR finish (Durable Water Repellent) helps repel water from fabric surface Anatomical shaping for fit & comfort Articulated elbows No-lift gusseted underarms Athletic fit for a slimmer more flattering profile Soft brushed-lined collar Stretch-woven cuffs Drop back hem Laminated hem Adjustable hem drawcord Laminated sleeve pocket with laminated zip Two hand pockets with zippers Two chest pockets with hidden zippers