On the tag of Adidas clothes, there are generally categories of direct contact, A and B. What's the difference?

Hello, the contact information on the tag is formaldehyde content control.

It is convenient for different people or people with sensitive skin to distinguish and choose.

Class A is infant clothing, and its formaldehyde content shall not be greater than 20mg/kg.

Class B is a garment that comes into direct contact with skin, and its formaldehyde content shall not be greater than 75mg/kg.

Class C is a garment that is not in direct contact with skin, and its formaldehyde content shall not be greater than 300mg/kg.