Hanes Women's X-Temp Tank:60% cotton/40% polyester.With X-Temp technology, designed with dynamic moisture control. It responds to your body temperature to keep you cool and dry.Rounded, shirttail hem for a sporty look.Lightly ribbed neck and arm openings, finished hem.All the comfort of Hanes with our famous tagless neckline.Machine wash cold with like colors, inside out if decorated. Use only non-chlorine bleach when needed. Tumble dry low. Cool iron if needed. Do not iron decoration.