I climbed all the way up here -- I better feel a little wind. A gentle breeze, at least!
S/M fits women's shoe size 5-9/men's shoe size 4-8.
L/XL fits womens's shoe size 9-13/men's shoe size 8-12.
Made with shock-absorbing cushion, soft heel tab, and compression band.
39% polyester; 39% cotton; 19% nylon, 3% spandex.