Size 9.5 = Chinese size26 =Insole length15.6cm
size10 = Chinese size 27=Insole length16.2cm
Size 11 = Chinese size 28 =Insole length16.8cm
Size 11.5 = Chinese size 29 =Insole length17.3cm
Size 12 = Chinese size 30 =Insole length18cm
size13 = Chinese size 31 =Insole length 18.6cm
Size 1 = Chinese size 32 =Insole length 19.3cm
Size 2 = Chinese size 33 =Insole length20.3cm
Size 3= Chinese size 34 =Insole length21cm
size3.5 = Chinese size 35 =Insole length21.5cm
Size4 = Chinese size 36 =Insole length22cm
Forwide foot,please choose one size bigger.