Polyester sunscreen fabrics is divided into several parts:
First, the fabric count is high and the fibers are tight, and the penetration of ultraviolet rays is reduced. (Polyester sunscreen fabrics is stronger than cotton fiber) Second, it can be used as an anti-ultraviolet coating, which is a functional fabric. (Polyester sunscreen fabrics can be achieved, but cotton fiber is not.)
Therefore, the sunscreen clothes we see are all polyester fiber. No cotton. A good polyester fiber made of breathable coating for sunscreen clothing has good air permeability and will not be stuffy.