I received this new in 2022 and used it. The 50-60cm size was quickly outgrown. There are faint marks from spit-up on the neckline. Since it was worn before the baby could hold their head up, there are also small pills and scuffs overall. This is a used item that my child wore regularly. Please purchase only if you understand this. I didn't use the vest very often. The coveralls are 100% cotton. The vest is 80% cotton, 20% polyester. I think the fabric is suitable for wear in all seasons except for mid-winter. White