Eur39 = US7 = UK6=foot length 24.5cm Eur40 = US7.5 = UK6.5 =foot length 25cm Eur41 = US8 = UK7 =foot length 25.5cm Eur42 = US8.5= UK7.5=foot length 26cm Eur43=US9=UK8=foot length 26.5cm Eur44=US9.5=UK8.5=foot length  27cm