280 yards is the size of China, 44-44.5 yards.

The design size of Coconut 380 is not small. Although some shoes in the Coconut Series are more or less too big or too small, the shoe size of 380 is still relatively positive.

New Balance 580 is the standard size, but the insole is thicker, and the shoe size of Hongxing Hongxing Erke is one size smaller, so it needs 43 yards.

Data expansion:

Shoe size, also known as shoe size, is generally marked as follows: international, European, American and British. The international standard shoe size indicates the millimeter of foot length. The China standard measures the size of shoes in millimeters or centimeters. For example, 123 means in millimeters and 12.3 means in centimeters. In fact, the two references are the same.