Jefferies Socks Little Boys' Wool Bold Boot  Sock Pack  (Pack of 2) 86% Wool/13% Nylon/1% Spandex Machine Wash This item is a 2 pair pack per selected size Please see size chart for sizing Sock size xs - shoe size 6-11 - age 2-4 years Sock size s - shoe size 9-1 - age 3-7 years Sock size m - shoe size 12-6 - age 5-10 years