Size: 9-12 months (My child, who is slender, wore this until about 1.5 years old. Photo 5 shows how it looked when they were 1.5 years old.) Worn a few times. There are some pills and fuzz in places, but they are not very noticeable and I think it can still be worn. ☺︎ Please purchase only if you understand that this item has been stored at home and has been inspected by an amateur.