My child, born in the summer, wore this when they were 2-3 months old. Since we spent most of our time indoors, it's made of sweatshirt material and is a bit thick, but we still used it in the summer. This item was given to me. There's a little bit of pilling, but I think it can still be used. #teteatete #cottoli #Size60 #Size50 #BabyGirlClothes