US version GU bodysuit. It's one size larger than Japanese sizes, so it's about an XL. *This product's size specifications are based on the body types of people in the United States. The functionality and quality are the same as products sold in Japan. Sizes may differ from Japanese standard products. Please refer to the size chart for details. Product number: 359942 Materials and Care Materials Body: 60% polyester (100% recycled polyester fiber), 35% cotton, 5% polyurethane, Gusset: 100% cotton Care Machine wash Dark colors may fade, so wash separately from other items. Use detergent without fluorescent whitening agents for white and light-colored items. Avoid using a dryer after washing with water. The use of fabric softener may reduce the sweat-wicking and quick-drying functions of the fabric, so please avoid it. Use a laundry net. Use a pressing cloth when ironing. Do not iron the buttons. Size Body Length Sleeve Length Shoulder Width Body Width XS 72.5 30 31 26.5 S 73 31 32 29 M 74.5 32 33.5 31.5