Shoe sizing

DIRT  EU UK USA/CA AUS
36 36 3.5 5.5 5.5
37 37 4.5 6.5 6.5
38 38 5.5 7.5 7.5
39 39 6.5 8.5 8.5
40 40 7.5 9.5 9.5
41 41 8.5 10.5 10.5