Please read our size chart carefully!!! It can help you choose the right size, based on your foot length. Note that if your feet are too long or too wide, Please choose 1 size bigger than usual. EUR35 = US 5 = foot length 22.5cm = 8.8 incieur36 = US 5.5 = foot length 23 cm = 9.0 incieur37 = US 6 = foot length 23.5cm = 9.2 incieur38 = US 6.5 = foot length 24 cm = 9.4 incieur39 = US 7 = foot length 24.5cm = 9.6 incieur40 = US 7.5 = foot length 25 cm = 9.8 incieur41 = US 8 = foot length 25.5cm = 10 incieur42 = US 8.5 = foot length 26 cm = 10.2 incieur43 = US 9 = foot length 26.5cm = 10.4 incieur44 = US 9.5 = foot length 27 cm = 10.6 incieur45 = US 10 = foot length 27.5cm = 10.8 incieur46 = US 10.5 = foot length 28 cm = 11.0 incieur47 = US 11 = foot length 28.5cm = 11.2 inch (all measurement in cm and please note 1cm = 0.39 inch)