XS S S/M M M/L L L/XL XL 2XL 3XL 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5 11 US 11.5 12 12.5 13 13.5 14 15 16 17 18