Waterproof, windproof shell 100-gram insulation Adjustable shoulder straps with clip-in buckles Zip-front Elastic armholes and back waist Rip-&-grip hip pockets Reinforced with Iron Knees and Seat: soft interior fabric patches that help prevent holey knees and seats so they can wear again and again! Grow-A-Long™ legs extend up to 2 inches to fit them as they grow Zip ankles fit over or into boots; elastic snow gaiters inside block out cold and snow Shell/lining/trim: 100% nylon. Insulation: 100%