Arc'Teryx Men's Proton SL Hoody Brand_Amuse Dual water-bottle holders nest between

Dual water-bottle holders nest between pack pockets for a bounce-free carry

mark and scan function for multiple burials

Other Features: Low back Ruffle at hem

durable design built to handle the longest tours and steepest lines

Arc'Teryx Men's Proton SL Hoody Brand_Amuse Dual water-bottle holders nest betweenClimb 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