Flax fabric has strong ultraviolet resistance, high hygroscopicity, fast moisture dissipation and excellent thermal conductivity. It is dry and perspiring in summer, comfortable and hygienic to wear, and easy to wash and dry. Antibacterial, mildewproof, deodorizing, promoting blood circulation and lowering blood pressure. Knitted pure linen sweatshirts are softer and more comfortable to wear. Pure cotton is soft and comfortable to wear. Flax is hard, but it is cooler than pure cotton and has better perspiration performance.