Men's Proton Hoody

Originally designed for climbers, the PROTON HOODY has become a trusted insulation layer for a wide range of high-output alpine activities. Featuring 80g Coreloft™ Compact insulation, it balances warmth and breathability with an air-permeable construction that regulates temperature and minimizes moisture build-up during exertion. The Fortius™ Air 20 shell—lightweight, durable, and now composed of 42% recycled nylon—enhances airflow and flexibility, while articulated patterning ensures full freedom of movement. A helmet-compatible insulated hood provides added warmth in exposed conditions. Updated Features: Now treated with a PFAS-free DWR finish, improved face fabric for greater sustainability, and refined insulation for enhanced stretch and breathability.