How do I select my size? 1.Measuring your foot length. Make sure you#39;re standing on a flat surface. Trace the outline of your feet on a piece of paper. Keep your writing utensil as perpendicular to the paper as possible so you get the most exact measurements. Once your feet are traced, use a ruler to measure from your heel to the tip of your longest toe. 2.Then use this shoe size chart to convert the length of your feet to a U.S. shoe size. Fox example: If you choose US 8.5. We will send size EUR 40. It comes with 25.0 cm insole length If you feet are fat, you may choose the bigger one Women#39;s International Shoes Size Chart Foot length range=Size US=Size UK=Size EUR 20.0~20.8cm(8.50~8.66inch)=US4.0=UK2=EUR34 20.8~21.5cm(8.70~8.86inch)=US4.5=UK2.5=EUR35 21.6~22.5cm(8.90~9.06inch)=US5.5=UK3.5=EUR36 22.6~23.5cm(9.09~9.25inch)=US6 =UK4=EUR37 23.6~24.0cm(9.29~9.45inch)=US7 =UK5=EUR38 24.1~24.5cm(9.49~9.65inch)=US8 =UK6=EUR39 24.6~25.0cm(9.69~9.84inch)=US8.5 =UK6.5=EUR40 25.1~25.5cm(9.88~10.04inch)=US9.5 =UK7.5=EUR41 25.6~26.0cm(10.08~10.24inch)=US10 =UK8=EUR42 26.1~26.5cm(10.28~10.43inch)=US10.5=UK8.5=EUR43 26.6~27.0cm(10.47~10.63inch)=US11=UK9=EUR44 27.1~27.5cm(10.67~10.83inch)=US12=UK10=EUR45 Allow 2~3mm differs product information: Shoe Width: Medium Platform Height: 0-3cm Decorations: Rhinestone Leather Style: Soft Leather Outsole Material: PVC Lining Material: Synthetic Heel Shape: Hoof Heels