Proton Sl Hoody Jacket color:BLACK and slim silhouette means that

and slim silhouette means that it can slip seamlessly into any situation

Designed with a classic collar

it offers a naturally broken in feel and relaxed easygoing comfort

while the high-quality cotton fabric keeps you cool and confident no matter the occasion

layered in history

Proton Sl Hoody Jacket color:BLACK and slim silhouette means thatDescription 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.