Columbia Little Boys' Bugaboo Pant Shell: 100% nylon kolon twill. lining: 100% nylon taffeta. insulation: 100% polyester, 100g. Machine wash cold gentle, wash separately, do not bleach, tumble dry low, remove promptly, iron low, do n ot use fabric softener, do not dry clean Omni-tech waterproof/breathable critically seam sealed Internal leg gaiter Zip-closed pockets Reinforced cuff guard Articulated knees