Product Details3 pack Material: Cotton, polyester and elastane Features Anti-odour Ribbed elastic welt Honeycomb mesh knit Cushioned heel padding Shaped arch support Cushion toe Reciprocated heel and toe Infused with copper yarn to benefit the health of feet Additional Information Care instructions: Machine wash according to instructions on the care label 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.