XS S M M/L L L/XL XL 2XL 4XL 1 19 1/2 21 22 23 23 1/2 25 26 27 27 1/2 28 28 1/2 29 29 1/2 30 31 32 33 34 35 35 1/2 36 36 1/2 36 2/3 37 37 1/3 37 1/2 38 38 1/2 38 2/3 39 39 1/3 39 1/2 40 40 1/2 40 2/3 41 41 1/3 41 1/2 42 42 1/2 42 2/3 43 43 1/3 44 44 1/2 44 2/3 45 45 1/3 45 1/2 46 46 1/2 46 2/3 47 47 1/3 47 1/2 48 1/2 128 140 152 164 176 35-37 41-45 43-44 OS