US size 9=CN size 27(Inner foot length 16.5cm)
US size 9.5=CN size 28(Inner foot length 17cm)
US size 10=CN size 29(Inner foot length 17.5cm)
US size 10.5=CN size 30(Inner foot length 18cm)
US size 11=CN size 31(Inner foot length 18.5cm)
US size 11.5=CN size 32(Inner foot length 19cm)
US size 12=CN size 33(Inner foot length 19.5cm)
US size 12.5=CN size 34(Inner foot length 20cm)
US size 13=CN size 35(Inner foot length 20.5cm)
US size 13.5=CN size 36(Inner foot length 21cm)
