Lightweight warmth meets mountain versatility in the Arc'teryx Women's Proton Pant. Ultralight Octa® Loft knit insulation delivers regulated warmth without bulk, while the air-permeable Fortius™ Air 50 outer keeps you moving with breathable stretch. Wear as a midlayer in alpine conditions or solo on approaches and day hikes. DWR treatment sheds moisture, articulated patterning removes restriction, and the trim fit layers seamlessly under shell jackets or heavier outerwear.
PROTON
Air permeable mid layer insulation with abrasion and weather resistant outer surface.
ALPINE AND ROCK CLIMBING
Climbing equipment designed for efficient movement and protection in alpine environments.
SYNTHETIC INSULATION
Man-made insulation with quick dry times, durability and retains warmth when damp.
Fabric type: Fortius 2.0-49% polyester 35% nylon 16% elastane
bluesign Approved Material
Recycled Polyester
Octa Loft breathable insulation
100% polyester
Care instructions: Machine Wash
Origin: Imported
Closure type: Pull On drawcord, Pull on low profile waist