Smartwool size chart

Men Sizes

SIZE US UK EU
S 3-5.5 2-4.5 34-37
M 6-8.5 5-7.5 38-41
L 9-11.5 8-10.5 42-45
XL 12-14.5 11-13.5 46-49

Women Sizes

SIZE US UK EU
S 4-6.5 2-4.5 34-37
M 7-9.5 5-7.5 38-41
L 10-12.5 8-10.5 42-45

Kid Sizes

SIZE US UK EU
XS 6-8.5 5-7.5 22-25
S 9-11.5 8-10.5 26-28
M 12-2.5 11-13.5 29-32
L 3-6 1-4.5 33-36