Spring selection

M/L XXXL 1 2 3 17 18.5 19.5 21 22 23.5 25 26 27 27.5 28 28.5 29 29.5 30 31 31.5 32 33 33.5 34 35 35.5 36 36.5 36 2/3 37 37 1/3 37.5 38 38-39 38-42 38.5 38 2/3 39 39 1/3 40 40.5 40 2/3 41 41 1/3 41.5 42 42-43 42.5 42 2/3 43 43-46 43 1/3 43.5 44 44.5 44 2/3 45 45 1/3 45.5 46 46-47 46.5 46 2/3 47 47 1/3 47.5 48 48.5 49.5 50 51 52 US 7 1/2 US 7 3/4 US 7 3/8 US 8