Designed for any athlete who wants to protect an injured ankle or prevent injury of a chronically injured ankle without bulk or weight. Features a durable, quick-fitting single-strap system that is adjustable for both high- and low-top shoes. Featherlight EVA padding that hugs every contour of the ankle. Sleek, less bulky brace that offers maximum performance and protection. Small - Men"s Shoe Size 5-8.5; Women"s Shoe Size 6.5-9.5 Medium - Men"s shoe size 9-12, women"s shoe size 10-13 Large - Men"s shoe size 12.5-16; Women"s shoe size 13.5-16