I used it for one season. There are no noticeable stains, but please purchase if you understand that it is a used item. We bought it late, so we only used it for a year, but I think it can be used for a long time because it's free size. It was much cuter than I expected when I tried it on. ZOOMIC Zoomic Knit Hat Rabbit Free Size (50-54cm) 2 years old, 3 years old, 4 years old Color...Pink