Arc'teryx Proton SL Hoody Men's Color:Dk Str / Black Sapphire Warmth & climate management

Warmth & climate management

break strength

570G (SIZE MEDIUM)

•  guaranteed super powers

and provides a sure grip every time

Arc'teryx Proton SL Hoody Men's Color:Dk Str / Black Sapphire Warmth & climate managementThe lightest, most breathable option in our Insulation Collection, the Proton SL Hoody takes the guesswork out of warming up on cold climbs and other high output activities in cool conditions. The knit insulation holds its loft and shapeno matter how often you stuff it into the bottom of your pack. More importantly, it allows your body to breathe, so youre not left a sweaty mess after you have to step on the gas to get through the crux. What's been