【Update】December 22, 2025 Price reduced! From 600 yen to 500 yen. Thank you for your consideration! Thank you very much for viewing my product from among many others. This is a safety vest for nighttime use that my child used. I don't understand the size notation, but it was used by a child aged "7-9 years old." There are some stains, but there are no noticeable tears. However, since this item has been handled by someone else, please refrain from purchasing if you are very particular about the condition... I hope this is understood and that it will be useful to someone! Thank you for your consideration.