Blue Cross Girls BLUE CROSS girls M (likely 150 size) The fabric is 100% cotton, and feels like a thin sweatshirt or a thick long-sleeved T-shirt. There is some fading on the thicker parts like the neckline, cuffs, and hem, but overall the black color is maintained, and there are no noticeable stains or scratches, so I think it can still be used. I have checked the item before listing, but please forgive any oversights. For those who understand home storage, thank you very much.