Winter belays bring a different kind of wet and cold. The Arc'teryx Alpha Lightweight Parka M is a lighter, more packable Alpha belay parka, which delivers serious warmth and breathable weather-resistant protection so you can stay comfortable and focused. 

RDS-certified 850-fill goose down is complemented with synthetic insulation in moisture-prone areas. Ultralight, ultra-durable Gore-Tex Infinium™, windproof, water repellent, and highly breathable, utilizes the Hadron™ face, delivering an abrasion resistance rivaling fabrics twice its weight. Fully insulated, a helmet-compatible StormHood™ adds warmth and protection. Features double side zips open for ventilation, Recco® reflector to help search and rescue in emergency situations and enough roomy pockets.