What are the commonly used fabrics for school sweatshirt?
1. Polyester: Poor air permeability and static electricity will form. It is very uncomfortable to wear. Some even use chemical fiber raw materials, which will even lose the cold-proof, warmth and breathability characteristics of the sweater. 2. All-cotton: It is best to use all-cotton fabrics for sweaters, with long cotton velvet, high chemical fiber flexibility…