This is a US Open cap that my child wore occasionally when they were around 2 to 4 years old. I purchased it at the event. It's a stylish cap with a slightly distressed look. It's a cap that's hard to find in Japan, so please take a look if you're interested! There are no noticeable stains. It's a foreign product, so the stitching might be a little rough, but it's not something to worry about.