I bought these on Amazon for about 1700 yen two months ago to go to Universal Studios Japan. My child wore the Mario hat, but only for about 10 minutes because they took it off right away. I've included a picture of my child wearing it at the end. They are 2 years old and have a large head, so even though their head size is 52cm, it was a tight fit. The Luigi hat was too small for adults. It could be worn, but it was tight, so I only tried it on at home. Since they haven't been used much, there are no noticeable stains, and I don't think they got sweaty because it was a cold day.