There are two types of ordinary clothes: one is S (small), the other is M (medium), and the other is L (large) and XL (large). The other is the form of height plus bust, such as 160/80A, 165/85A, 170/85A, etc.
The first label is not standard. Whether domestic or imported clothing, models must be marked according to China's clothing model standard GB/T 1335, and English letters can only be used as auxiliary codes.