Created to offer the breathability, durability, and mobility guides and mountain professionals demand, our warmest Proton delivers air-permeable thermal performance for high-output missions in cold conditions. 100gsm Coreloft™ insulation and the Fortius™ Air 50 outer allow airflow that helps speed vapour transport and balance thermal comfort. 60gsm Coreloft™ in the sleeves and helmet-compatible StormHood™ reduces bulk, the regular fit layers easily, and articulated patterning removes restriction.

Proton
Air permeable mid layer insulation with abrasion and weather resistant outer surface.

Synthetic Insulation
Man-made insulation with quick dry times, durability and retains warmth when damp.

Multi-Use
Versatile high performance designs for diverse activities and conditions.

Technical Features
Breathable
Versatile
Warm and comfortable

Construction
Warm, resilient Coreloft™ synthetic insulation provides thermal performance and retains loft
Fortius™ Air 50 nylon plain weave is lightweight, air-permeable, and durable

Cuff & Sleeves Configuration
Elasticated cuffs seal out cold

Hood Configuration
Helmet compatible StormHood™ provides full coverage without impacting visibility
Insulated StormHood™

Patterning
Articulated patterning for unrestricted mobility

Pocket Configuration
Two chest pockets with zippers
Two hand pockets with zippers
Two internal dump pockets

Sustainability
Biocidal Disclosure - This model was treated with an anti-odour biocidal product (Active Ingredient: Silver Nitrate)
PFAS (Per- and polyfluoroalkyl substances) Compliant

All measurements are in inches

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