Recommended for lifestyle and outdoors.

Proton SL Hoody Men's is a lightest, most breathable fully insulated hoody designed for alpine and rock climbing in cool conditions.

• Product Type: Men's lightweight insulated jacket
• Material: Fortius
• Weight: 370g
• Knit insulation holds loft and shape, even when frequently stuffed into a pack
• Breathable design helps reduce sweat build-up during hard efforts
• Updated with a chest pocket and design lines aligned with the Proton Collection

Pair it with a men's shell jacket for added weather protection on alpine routes.

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 shape—no matter how often you stuff it into the bottom of your pack. More importantly, it allows your body to breathe, so you're not left a sweaty mess after you have to step on the gas to get through the crux.

What's been updated: Updated with recycled Fortius fabric for improved durability, and chest pocket and design lines that align with the Proton Collection.

Need a heavier option? Try the Proton Hoody.

Climber's lightest, most breathable insulation Moisture-resistant outer face fabric Breathable Lightweight Durable Octa Loft breathable insulation provides thermal protection Fortius Air 20 face fabric effectively balances air permeability and weather resistance with lightweight durability and stretch Fitted, with articulated patterning for mobility and comfort Garment Centre Back Length: Size M is 29"/72cm - Varies by size