This is a baby hat from Miki House. The size is S, for 40-44 cm. It's reversible. It's reversible with a border pattern on one side and a white towel fabric on the other. The size can be adjusted somewhat with the elastic. It's made of a material with a UV protection rate of 90% or more. Retail price was 5400 yen + tax. I purchased this new and unused, and my son used it about 5 times when he was around one year old. It's light, foldable, and washable, so it was very useful. Upon close inspection, there appears to be a faint stain under the Miki House mark in the second photo. It's not very noticeable due to the border pattern, and I didn't notice it when using it, but I think there might be individual differences in perception, so I'd like to offer it to someone who doesn't mind.