Outstanding Warmth & Packability | Lightweight yet impressively warm, this alpine-ready down jacket now offers an anatomical fit for a better range of motion for climbing and mountain travel. 800-Fill RDS Down With Nikwax Hydrophobic Finish | Lofty, ethically sourced down with a water-repellent treatment traps body heat and dries quickly. Pertex Quantum Pro | Water-resistant coating to keep you dry and comfortable in fickle mountain weather. Durable Where It Matters | Ripstop material over the shoulders and upper sleeves adds increased abrasion resistance. Specs | [Best Use] Climbing, Mountaineering, Hill Walking; [Material] 20D Recycled Pertex Quantum Pro; [Insulation] 800 FP European Goose Down, Nikwax PFC-Free Finish; [Fit] Regular; [Centre Back Length] (Medium) 77cm; [Hood] Helmet Compatible; [Pockets] 1 Zippered Chest, 2 Zippered Hand The Neutrino Pro Jacket has been a favourite of mountaineers for the last twenty years. Updated with recycled materials and a new arm baffle design, the new Neutrino Pro now has greater mobility and a lighter footprint. Perfect for climbing in winter conditions, this alpine down jacket is filled with 800FP, RDS certified 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 new 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.