[Material description]100% cotton (220gsm) [Product performance]Soft and comfortable, slightly elastic, easy to wear and match, comfortable and fashionable, simple and practical, not easy to shrink, durable, fashionable [Applicable scenarios]Daily, home, travel, fitness, etc. [Applicable people]Men and Women[Washing instructions]Can be hand washed or machine washed, do not soak for a long time, do not bleach, the washing liquid temperature cannot exceed 45ºC.[Special instructions]This size data is measured when the clothes are laid flat. The chest circumference measured when laid flat is 1/2. Due to different measurement methods, the error within 2-4cm is normal.