Climb comfortably in our lightest, most breathable fully insulated hoody.

The Proton SL Hoody was previously the Proton Lightweight Hoody.

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.

Technical features

• Moisture-resistant outer face fabric
• Breathable
• Lightweight
• Durable

Construction

• Fortius™ Air 20 face fabric effectively balances air permeability and weather resistance with lightweight durability and stretch
• Octa® Loft breathable insulation provides thermal protection

Design & Fit

• Fitted, with articulated patterning for mobility and comfort
• Garment Centre Back Length: Size M is 29"/72cm - Varies by size

Fabric treatment

• FC0 DWR (Durable Water Repellent) finish repels moisture and is PFAS-free

Hood configuration

• Helmet compatible
• Adjustable insulated hood

Pocket configuration

• Two zippered hand warmer pockets
• Single stretch woven zippered chest pocket

Sustainability

• Contains materials that meet the bluesign® criteria
• Body - bluesign® approved material
• PFAS (Per- and polyfluoroalkyl substances) Compliant

Materials

• Lining: Polyester Octa Rachel knit Insulation, 98gsm - 100% Polyester
• Body: Recycled 20d nylon plain weave weft stretch FC0 DWR, 58gsm - 88% Nylon, 12% Elastane
• Origin of fabric: TAIWAN
• Origin of dyeing: TAIWAN
• May release plastic microfibres into the environment when washing