Proton SL Hoody Jacket HO25 and all-day support in a

and all-day support in a sleek

It's hydration-ready with an insulated sleeve in the shoulder strap

Sutro gives cyclists a bold and versatile look that they can confidently wear on and off the bike

If you prefer to ride anything and everything that appears downhill from you

Jagged lines

Proton SL Hoody Jacket HO25 and all-day support in aDescription 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.