Molehill Girls Shelled Summit Snow Bibs (Toddler to Big Kids) Shell - 100% Teflon Coated Nylon. Lining - 100% Polyester. Stress Points - 600D Polyester. Imported Zipper closure Durable waterproof breathable nylon shells for extreme weather conditions 600D polyester reinforments to high stress areas and 100% polyester fill for extra warmth and comfort Adjustable hook and loop cuff closures and "GROW CUFFS" for expanding leg length Adjustable Velcro suspenders and elasticized waist belt/ankles Articulated reinforced knees and reinforced waterproof butts for added durability and warmth