Alpine climbing Shell: GORE® WINDSTOPPER® shell (100%nylon) Lining: 100% nylon Insulation: 900-fill goose down Helmet compatible hood with one-hand adjustable drawcord Oxygen mask compatible collar Fully taped seams for waterproof, windproof and breathable performance DWR finish repels moisture Double chest pockets with waterproof zipper Extra long waterproof center front zipper Reinforced shoulders, elbows, knees, ankles, seat and hem Adjustable shoulder straps Special treatment prevents down from shedding U-shaped rear-zip for easy on/off Waterproof long side zippers at legs The Mont Down Suit is designed to protect you against the harshest weather on the world's highest peaks. Constructed from GORE® WINDSTOPPER® shell and 900-fill waterproof goose down, it is highly windproof, breathable and water-repellent, ideally suited for climbing 8000m peaks and exploring the polar regions.