Proton SL Hoody Jacket size:SM The pinnacle of sock perfection

The pinnacle of sock perfection

There’s a reason climbers live in hoodies

Designed with a flattering lowrider fit that sits perfectly on your hips

Sleeve and hood padding 20g/m2

Proton SL Hoody Jacket size:SM The pinnacle of sock perfectionDescription 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.