XS S S/M M M/L L L/XL XL 2XL 3XL 4XL 16 17 18 18.5 19.5 21 25 26 27.5 28 28.5 29.5 30 31 31.5 32 33 33.5 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 One Size