PUPO brand set of 2 baby undershirts Size 50-60 100% cotton, made in Japan Color: Pink I bought these online, but they are thicker than I expected. I wasn't able to use them much for my baby, who was born in the summer, and they were only worn 1-2 times. I think they will be easy to use in the coming seasons＾＾ I don't think there are any stains or marks, but since they are used items, please refrain from purchasing if you are concerned.