This is a used t-shirt from Official Team. The size is 90, but it has a slightly larger fit, so I think it can be worn by children who wear size 100. It has different designs on the front and back, making it stylish. It's 100% cotton, but the fabric feels a bit thick. There is some wear and tear, but there is no major damage, so I think it can still be worn. Please understand that this is a used item before purchasing. It will be shipped folded small. Shipping method may change from Rakuraku to Yuyu.