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The Arc'teryx Proton SL Hoodie takes the temperature guesswork out of cold-weather activities with its ultra-light, breathable knit insulation that lets your body regulate naturally even during high-output sequences. The loft maintains its shape no matter how often you stuff it into your pack, giving you reliable warmth that breathes with you instead of turning you into a sweaty mess when the route demands everything you've got.
FC0-DWR Finish – Repels moisture and is PFAS-free.
Body – Fortius™ Air 20 | 88% Nylon, 12% Elastane
Insulation – Octa® Loft | 100% Polyester
Fitted – A trimmer fit is 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.
Articulated Patterning for Unrestricted Mobility
Two Zippered Hand Pockets
Single Stretch Woven Zippered Chest Pocket
Helmet Compatible Hood
Adjustable Insulated Hood
| Size | XS | S | M | L | XL | XXL |
| Weight (g) | 370 |