Craft Men's Cool Mesh Superlight Sleeveless Shirt (White, Small) 91% Polyester/ 9% Lycra Made in US 100% polyester Made of Craft COOL fabric which keeps you cool, comfortable and dry. Flat seam contour construction keeps you comfortable a reduces the chance of chaffing. wash with smiliar colors, do not use softner, wash inside out, tunble dry low, do not iron China