Please pay attention to the following tips: 1. Choose the size of your shoes according to your foot length. 2. The length of the insole must be greater than the length of the foot. 3. The length of the insole is usually 0-1.5cm longer than the foot. 4. You may need to adjust size accordingly if your foot is wide,narrow or high instep. How to measure the length of the foot？ Shoes Size Information US size 5 = Eur size 36 = fit foot lenth 23.0 cm\ 9.06 inch US size 5.5 = Eur size 37 = fit foot lenth 23.5cm\ 9.25 inch US size 6 = Eur size 38 = fit foot lenth 24.0cm\ 9.45 inch US size 6.5 = Eur size 39 = fit foot lenth 24.5cm\ 9.65 inch US size 7 = Eur size 40 = fit foot lenth 25.0cm\ 9.84 inch US size 8 = Eur size 41 = fit foot lenth 25.5cm\ 10.04 inch US size 8.5 = Eur size 42 = fit foot lenth 26.0cm\ 10.24 inch US size 9 = Eur size 43 = fit foot lenth 26.5cm\ 10.43 inch US size 10 = Eur size 44 = fit foot lenth 27.0cm\ 10.63 inch US size 11 = Eur size 45 = fit foot lenth 27.5cm\ 10.83 inch Model Display: details of all aspects of the shoes