The Size Note Is the Total Length of the Shoes. the Shoe Size Belongs to Smaller Size. We Recommend That You Choose a Larger Size of Size 2 for Fat Feet Wide Feet!!! Size Reference: 36-37(23.5cm) Suitable for 35-36 Feet 38-39(24.5cm) Suitable for 37-38 Feet 40-41(25.5cm) Suitable for 39-40 Feet