Grey/navy everyday essentials 6 pack socks. Cotton/modal/nylon/spandex blend, providing absolute comfort. Kick-proof socks with elastic gather perfectly placed at the ankle. Non-skid application on soles prevent slips and falls. The original Kickproof infant sock since 2010. 75% cotton, 22% nylon, 3% spandex. Machine wash, tumble dry low. Do not iron or bleach