MIZUNO GX・SONIC Ⅲ ST (SPRINTER MODEL), size M. This is a sprinter model specialized for short-distance events. It provides a strong hold and supports the back of the thighs (hamstrings). It can be used for practice sets and competitions. This high-speed swimsuit has been used about 5 times and is in good condition. The logo mark and FINA mark are both in good condition, so it can be worn in competitions. ‼️If you purchase this item together with other high-speed swimsuits I have listed, we can offer a set discount, so please consult in the comments section‼️ There are no noticeable scratches or stains. However, please refrain from purchasing if you are sensitive to such things. Also, please understand that this item is stored by an amateur, and we do not accept returns or exchanges. ⚠️If you purchase by January 2, 2026, we will ship it on the same day. ⚠️If you purchase during the period from January 3 to January 12, 2026, the item will be shipped on January 13. We apologize for the inconvenience.