16 18.5 17 19 19.5 20 21 21.5 22 22.5 23 23.5 24 24.5 25 25.5 26 26.5 27 27.5 28 28.5 29 29.5 30 30.5 31 31.5 32 32.5 33 33.5 34 34.5 35 35.5 36 36.5 36 2/3 37 37 1/3 37.5 38 38.5 38 2/3 39 39 1/3 39.5 40 XS S M L XL 80 116 128 140 152 164 176