Product Details5 pack MaterialCotton, polyester and elastane Features Odour control Reinforced heel and toe Arch support Cushioned foot Care InstructionsWarm machine wash with similar colours Do not bleach Do not use fabric softener Do not tumble dry Warm iron on reverse side if required Do not dry-clean Additional Information By choosing our cotton products, you're supporting our investment in Better Cotton's mission. Visit bettercotton. org/massbalance to learn more. This product is sourced via a mass balance system and therefore may not contain Better Cotton.