Posture support "Doctor's Firm Back Belt" that straightens your back and pushes your shoulder blades back just by wearing it. By tightening the side belts on both sides, it gently stretches rounded back muscles, creating a beautiful and healthy posture. The approximately 30cm long bone supporting the spine fits the body's movements. Made with breathable mesh material, it can be worn comfortably throughout the year. Suitable size: [M-L] Waist 60-85 (cm) Weight: 190g Material: Nylon, Polyester, Polyurethane Country of origin: Japan *The product will be shipped without the box.