This was used as loungewear/pajamas for about 3 months in the summer by a child born in January of last year. I didn't see any noticeable stains, but since it was used by a baby, there might be some faint, inconspicuous stains. The child rarely spit up. These were purchased at Nishimatsuya and Birthday. The items in the 5th photo and the Mickey Mouse ones show more signs of wear.