Perfect for climbing in winter conditions, this alpine down jacket is filled with 800FP goose down. This ultra-high lofting down is extremely insulative, even in freezing temperatures. The Neutrino Pro uses a recycled, wind and weather resistant Pertex® Quantum Pro outer, offering refuge from blizzards, withstanding snow, and spindrift. The anatomically engineered twisted arm baffles improve arm pre-curve, enabling complete freedom of movement. Designed specifically with the demands of winter climbing in mind, whether you’re questing up frozen waterfall or belaying from an exposed ledge, the Neutrino Pro offers unhindered movement for proficient climbing. Incredibly lightweight and packable for such a warm jacket, the Neutrino Pro can be compressed into its stuff sack (sold separately) and stored in your pack. It has a fully adjustable, helmet compatible, down filled hood and a tough, two-way YKK® VISLON® ® front zip for ease of use with a harness.