The Arc'teryx® Proton Heavyweight Hoody is crafted from breathable Fortius™ Air 50 nylon plain weave that is lightweight and allows air into the system to move vapor out Lofty. Warm Coreloft™ Continuous 100 lightweight insulation allows air transfer and performs even when wet60gsm Coreloft™ in hood and sleeves for warmth with reduced bulk insulation. It features adjustable helmet-compatible StormHood™, providing warmth and coverage without impacting peripheral vision and long sleeves.
Regular fit with articulated patterning for mobility and freedom.
