Arc'Teryx Men's Proton SL Hoody Brand_Amuse Due to the custom dye

Due to the custom dye process

durable design built to handle the longest tours and steepest lines

Soft and cozy

then scrape with a sharp plastic scraper

Styling Details Dropped shoulders

Arc'Teryx Men's Proton SL Hoody Brand_Amuse Due to the custom dyeClimb 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