Hanes Men's X-Temp&reg; Comfort Cool&reg; Ankle 6-Pack cotton polyester spandex Imported White: 71% cotton/25% polyester/2% natural latex rubber/1% spandex/1% nylon Black: 72% cotton/24% polyester/2% natural latex rubber/1% spandex/1% nylon Super soft breathable cotton for all day wear. Extra reinforced heel and toe. Open-stitch knitting design ventilates air to easily flow through fabric to keep you dry and comfortable. Wicks away moisture to keep you cool and dry.