Size Chart - Happy Socks

 WAIST INCHES CM
Small (S) 30 - 33 76 - 83
Medium (M) 34 - 36 86 - 91
Large (L) 37 93
Extra Large (XL) 38 - 39 96 - 99
 Sock Size Man Shoe Woman Shoe
9-11 8 - 12 10 - 12.5