XS S S/M M M/L L L/XL XL 2XL 3XL 4XL 17 18 27.5 28 28.5 29 29.5 30 31 31.5 32 33 34 35 35.5 36 36.5 37.5 38 38.5 39 40 40.5 41 42 42.5 43 44 44.5 45 45.5 46 47 47.5 48.5 49.5 52 140 152