Mask t is better. Mask T-shirts are generally made of ice silk fabrics, which have better hygroscopicity, breathability and drapability than ordinary viscose fabrics. They are thin and cold, and they will not feel uncomfortable when the temperature is high in summer. Modal cotton is made of regenerated cellulose, the main raw material is beech, which will lead to some pilling after textile processing into fiber. Modal fabrics are generally light and easy to deform.