This knit sweater, which can be worn by both boys and girls, has been stored at home after my child outgrew it. (My child was a boy.) It doesn't pill easily, and even if it does, it's not very noticeable. There are no noticeable stains, scratches, or holes. Please understand that this is a used item. Japanese size is approximately 100 to 105cm. 50% cotton, 45% nylon, 5% wool.