I bought this during a super sale at a certain shop when my child was over 7 months old and attending baby swimming lessons, but I ended up quitting before I could wear it, so it's unused. I threw away the tags, but the condition is fine. It's size S, and fits head circumferences of around 40-46cm. Material: 87% polyester, 13% polyurethane. Recommended for pools and the beach in the coming season! Retail price: 1000 yen. R710/7 Final price reduction.