Proton Sl Hoody Jacket color:BLACK Designed with a classic collar

Designed with a classic collar

it offers a naturally broken in feel and relaxed easygoing comfort

layered in history

while the hand-warmer pockets keep your hands from freezing

Proton Sl Hoody Jacket color:BLACK Designed with a classic collarDescription 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 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.