we suggest you choose the size according to your foot length which is the basis of size choosing.
"size information:
(Pls chooes the size according to your foot length):
US size 4 = EUR 34 = about 22cm
US size 5 = EUR 35 = about 22.5cm
US size 6 = EUR 36 = about 23cm
US size 6.5 = EUR 37 = about 23.5cm
US size 7.5 = EUR 38 = about 24cm
US size 8.5 = EUR 39 = about 24.5cm
US size 9 = EUR 40 = about 25cm
US size 9.5 = EUR 41 = about 25.5cm
US size 10 = EUR 42 = about 26cm
US size 10.5 = EUR 43 = about 26.5cm"