These ankle length molded rubber socks are the perfect finish to your rubber gear. They come in S-M-L-XL and can be used as is with a cat suit or inside your rubber or leather boots. These will keep all the sweat inside your socks instead of soaking inside your leather boots. The foot length size for the latex socks measure approximately: Small= 8 1/2-9 Medium= 9- 9 1/2 Large= 10-10 1/2 X-Large= 10 1/2-11 Please remember there is a 1/2-1 inch stretch factor to the socks, depending on how tight you like to wear them.