Supremely versatile, the Proton Lightweight Hoody is an insulated hooded jacket for a range of outdoor activities. Octa Loft knit synthetic insulation provides exceptional warmth, maintaining loft to trap and circulate warm air. Fortius Air 20 durable outer fabric offers light wind and water resistance, stretching with the body and encouraging air flow for temperature regulation, ideal for high octane pursuits. An adjustable, insulated hood and adjustable drawcord hem delivers additional warmth when needed. Four zip secure pockets offer essential storage. Cut with articulation and gusseted underarms for full mobility, this trim fit jacket is designed to be worn on its own or as part of a layering system.