Proton SL Hoody Men's lid a 100% Polyurethane palm

a 100% Polyurethane palm

14% goat leather

And it’s all wrapped up in a unique Kate Zessel design you might almost want to frame—although

The optionally available lithium packs are simply attached to the wrist area using snaps

The 800 fill ProDown retains its loft in wet conditions

Proton SL Hoody Men's lid a 100% Polyurethane palmThe 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. What's been