Arc'teryx Proton Hoody

Designed for high-output mountain missions, the Proton Hoody delivers breathable synthetic warmth in a lightweight, stretch-built package. Its 80gsm Coreloft™ Compact insulation is paired with a Fortius™ Air 20 face fabric and a breathable recycled nylon liner, so body heat and moisture are regulated during sustained climbing or skiing efforts. The updated PFAS-free DWR finish repels light precipitation while maintaining the air permeability that makes this jacket so versatile.

From rocky alpine approaches to resort laps and freeride lines, the Proton Hoody handles cold-weather output without overheating. Articulated patterning frees movement, the helmet-compatible insulated hood extends comfort, and zippered hand and chest pockets keep essentials secure. With recycled materials and a Fair Trade Certified construction, it’s a dependable midlayer for anyone who wants warmth that works as hard as they do.