Size Chart and Fitting Guide

Kids

Thorlos Sock Size USA Shoe Size UK Shoe Size EU Shoe Size
9 3 to 4.5 34 to 36 1 to 3

Men

Thorlos Sock Size USA Shoe Size UK Shoe Size EU Shoe Size
10 6 to 8 5.5 to 7.5 39 to 41
11 8.5 to 10 8 to 9.5 42 to 44
12 10.5 to 11.5 10 to 11 45 to 46
14 12 to 14 11.5 to 13 47 to 49

Women

Thorlos Sock Size USA Shoe Size UK Shoe Size EU Shoe Size
9 5 to 6.5 3.5 to 5 36 to 38
10 7 to 9 5.5 to 7.5 39 to 41
11 9.5 to 11.5 8 to 9.5 42 to 44