The shoe sizes adopted by countries all over the world are not consistent, generally including length and width. Length refers to the length of the wearer's foot or the length of the manufacturer's shoe last. Even in the same country/region, different people and shoes with different uses, such as children and sports shoes, have different definitions of shoe sizes.
The standard shoe size in China is mostly in millimeters or centimeters, that is, the millimeters or centimeters of the foot length data. For example, 265 means in millimeters, corresponding to 26.5 centimeters, and the European code is 43 yards. Actually, these sizes are the same. According to international standards, the Mondopoint shoe size system recommended by ISO standard ISO 9407 is based on the width and average length of feet, and the basic unit is millimeters.