The Neutrino Endurance Jacket is the award winning lightweight down jacket, designed for cold weather mountain activities. The Pertex Endurance outer shell keeps the jacket lightweight and durable, protecting against storms. Filled with 800FP Hydrophobic European Goose Down it will keep you toasty on the highest peaks and the lowest hills. Features Pertex Endurance outer Pertex Quantum inner 800 FP European Goose Down (200g in UK size 12) Rab fluorocarbon free Hydrophobic Down developed in conjunctin with Nikwax Weight: 593g Stitch-through baffle construction Helmet compatiable hood with wired peak and down insulation 2-way YKK AquaGuard front zip Chin guard Internal insulated zip baffle 2 YKK AquaGuard zipped handwarmer pockets YKK zipped internal security pocket Velcro cuffs Hem drawcord Stuff sack Regular fit Glossary Pertex Endurance: Pertex Endurance technology incorporates a lightweight, ultra thin, air permeable membrane that is both highly breathable and water and wind resistant. This layer protects the insulation material from the elements to maintain loft and retain warmth.