Columbia Big Boys' Heat Excursion Vest Shell: 100% polyester. lining: 100% polyester. insulation: 50% polyester, 50% recycled polyester, 100g Machine wash cold gentle, wash separately, do not bleach, tumble dry low, remove promptly, iron low, do not use fabric softener, do not dry clean Omni-heat thermal reflective and insulated Omni-shield advanced repellency Interior security pocket Media pocket