Arc'teryx Proton SL Hoody Men's Men's Footwear Its strategically placed core warmth

Its strategically placed core warmth works solo on cool

and equipped with a removable hood

Crafted from cozy French terry

Built from 100% recycled polyester

The Niki Sleek Jersey Top is such an easy choice that you'll want to mix and match it with all of your outfits

Arc'teryx Proton SL Hoody Men's Men's Footwear Its strategically placed core warmthClimb comfortably in our lightest, most breathable fully insulated hoody. The Proton SL Hoody was previously the Proton Lightweight Hoody. The 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