1. Synthetic fiber: polyester cotton (polyester fiber), hollow cotton, slippery cotton, soft cotton (loose cotton) Features: light-resistant, abrasion-resistant, easy to wash and dry, not moldy, not to be eaten by insects, etc., but it keeps warm The properties are worse than natural fibers.

2, natural fibers: wool, silk, pure cotton. There is no irritation in contact with the skin, and it is good and harmless to the human body. It has good moisture absorption and breathability, but it is easy to wrinkle.