The Neutrino Pro Jacket has been a favourite of mountaineers for the last twenty years. Updated with a new arm baffle design and 100% recycled fabric, 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 goose down.This ultra-high lofting down is extremely insulative, even in freezing temperatures. The Neutrino Pro uses a 100% 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.Incredibly lightweight and packable for such a warm jacket, the Neutrino Pro can be compressed 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. Designed for durability in rugged terrain, the shoulders and upper sleeves have been strengthened with Ripstop reinforcements. A true staple for alpinists, the new Neutrino Pro is ultra-warm, hardwearing, and honed for vertical adventures.Details Fit: Regular Insulation: 800FP European Goose Down with Nikwax Fluorocarbon-Free Hydrophobic Finish (212g/ 7.5oz, Size M) Centre back length: (Size M): 77cm/30.3inch Weight: 585g/20.6oz (Size M) Fully adjustable, helmet compatible down-filled hood with stiffened peak for increased protection 2-way YKK® VISLON® front zip with insulated storm flap 1 YKK® zipped internal chest pocket 2 YKK® zipped hand pockets Stitch-through construction Larger ripstop over the shoulders and upper sleeve for added durability Cuff adjustment and elastication for optimum fit when wearing gloves Articulated sleeves for mobility. Adjustable hem. Outer Fabric - Lightweight 20D recycled Pertex® Quantum Pro (40gsm) Lining - 20D recycled (38gsm) 800FP European Goose Down with Nikwax Fluorocarbon-Free Hydrophobic Finish (212g/ 7.5oz, Size M) Centre back length (Size M): 77cm/30.3inch