Extreme Alpaca Boot Socks 9-11 Fit Men's Shoe 6-7 or Ladies' Shoe 7-9 2% elastic This is the original Extreme Alpaca tm Sock! Produced entirely in North America of North American Alpaca Fiber! Alpaca's natural wicking ability will keep feet warm & dry Now with reinforced heel and toe 9-11 socks fit ladies shoe size 7-9, or mens 6-7 shoe