Wrinkle-resistant (easy to iron), antibacterial and deodorizing treatment, top fuse wick (eliminates collar wrinkles), 35% cotton, 65% polyester, white - bleach; fluorescent color; materials are made from materials (custom made fabric) and are sewn in a carefully selected specialty A-class factory. The buttons are sewn well, so there are almost no defective products. For that reason, there are many repeaters for this reason. The value of the product is comparable to major school manufacturers. Please do not deflate the product. Hang dry. Medium temperature is suitable for ironing. The liquid temperature is limited to 104°F (40°C), and the gentle cycle after washing is recommended. Please use a laundry net when washing as much as possible. The armholes are also generously shaped and are very easy to move.