Three-dimensional body adjustment wear that guides you to your ideal zero position. Maximize your original power! Gradual compression adjusts the balance of the core, which is the axis of the body, thereby improving all basic movements. STB is high-performance underwear developed for all athletes from the perspective of core (trunk) balance. This is a beautiful, good-quality item that has only been worn once. It has been stored at home, so there may be some unnoticed minor scratches or stains. Please refrain from purchasing if you are concerned about these details. Only the product will be delivered. (The original bag is not included) This item is offered at a reduced price due to it being a used item. We appreciate your understanding. (☝︎ ՞ਊ ՞)☝︎ Price reduced again! Shipped via Mercari, anonymous delivery. ※To prevent trouble and swapping, returns are strictly refused, including those due to color differences. No returns or refunds will be accepted. Please understand. The price includes shipping. We will carefully package and ship promptly. Thank you very much!^_^ Management number: 0923-1300 #YONEX #ShortSleeveShirt #Tops #HighFunction #Posture #Basketball #Baseball #Stretch #Underwear #Badminton #Tennis #Running #Athlete #Soccer #TrainingWear #Black #YONEX #Black #AnonymousDelivery #Walking #STB #PRO #M #ProModel #HighPerformance #Scapula #Balance