20 21 22 23 33.5 34 35 35.5 36 36.5 37 37.5 38 38.5 39 39.5 40 40.5 41 41.5 42 42.5 43 44 44.5 45 46 46.5 47.5 48 49 50 51.5 54 4XS XXXS XXS XS S M L XL XXL XXXL OS