Arc'teryx Men's Proton SL Hoody

The lightest, most breathable option in the Arcteryx 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. Updated with recycled Fortius™ fabric for improved durability, and chest pocket and design lines that align with the Proton Collection. 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 free from intentionally added PFAS  Hood configuration: Helmet compatible Adjustable insulated hood Pockets: 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 Weight:  370g / 13.1 oz Activity: Alpine/Rock Manufacturing facility:  Youngone (CEPZ) LTD, Bangladesh  Fit & Sizing: Fit: Fitted A trimmer fit patterned to stay close to the body through the chest, waist, hip, and thigh. Its low profile eliminates bulk, moves with the body, and fits comfortably over first layers or under outer layers. Materials: Lining: Polyester Octa Rachel knit Insulation, 98gsm - 100% Polyester  Body: Fortius™ Air 20 - Plain Weave, FC0 DWR, 58gsm - 88% Nylon, 12% Elastane  NOTE: The Proton SL Hoody was previously the Proton Lightweight Hoody.