I bought this for my child, but it was stored without being worn. The tag and size sticker "M" are still attached on the back. PM0571 【Material】 30/-MVS Polyester Jersey (100% Polyester) 【Color】 Black 【Size】Men's Model M ※Due to the nature of the material and sewing, there may be slight variations. 【Features】 ・Columbia's unique moisture-wicking function "Omni-Wick" ・Columbia's unique sun protection function "Omni-Shade" UPF40 ・100% polyester material characterized by its refreshing feel ・Back print design ・Relaxed fit with moderate ease ・Recommended for all outdoor scenes such as mountain climbing, hiking, festivals, and camping 【Description】 A long-sleeved T-shirt suitable for all outdoor scenes such as mountain climbing, hiking, festivals, and camping. It uses a polyester jersey material characterized by its refreshing feel. In addition to the moisture-wicking function "Omni-Wick," which quickly absorbs and dries sweat, it is also equipped with the sun protection function "Omni-Shade" to protect the skin from UV rays, providing a full range of outdoor-specific functions. With a relaxed fit that provides moderate ease, you can enjoy a trendy look.