Arc'teryx Proton Hoodie Men's

Made for climbers – but not limited to rock and ice – the Proton Hoody is the go-to breathable insulation layer for high-output mountain missions. 80gsm Coreloft™ Compact insulation works with the air-permeable face fabric and liner to regulate temperature and vapor build-up. The Fortius Air 20 nylon shell is light and durable, articulated patterning removes restriction, and a helmet-compatible insulated hood extends the warmth.