Akesso Women's Size Chart:

U.S.A. 6 6.5 7 7.5 8 8.5 9 9.5 10 11
U.K. 4 4.5 5 5.5 6 6.5 7 7.5 8 9
EURO 37 37.5 38 38.5 39 40 40.5 41 42 43
CM 22.5 23 23.5 24 24.5 25 25.5 26 26.5 27.5