FITKICKS Size Guide

US EU KU
S 6.5-5.5 35.5-37 3-4
M 7-8 37.5-38.5 4.5-5.5
L 8.5-9.5 39-40.5 6-7
XL 10-11 41-42 7.5-8.5

FITKICKS Kids Size Guide

US EU KU
S 10-11.5 27-29 9-10.5
M 12-13.5 30-31 11-12.5
L 1-2.5 32-34 13-1.5
XL 3-4.5 34-36 2-3.5