Product name: Back support Humpback correction belt L size Features: 1. Double Y cross straps are ergonomic, open the shoulders and correct the hunchback; 2. Memory fiberboard, strong support for the waist, relieve fatigue; 3. The shoulder-wrap design forms a protective net from point to surface, which fits the shoulder curve and is comfortable to wear; 4. Breathable mesh fabric, light and breathable, not stuffy and sweaty; Product suitable waist circumference: 90-105cm; Product suitable height: 160-180cm; Suitable weight for the product: 60-75kg; Product Features: 1. Correct bad posture; 2. Improve the distance between eyes; 3. Relieve body fatigue; Steps for usage: 1. Stretch out your arms, bring a good back and adjust the shoulder straps to a suitable position; 2. Pull down and flatten, adjust the position of the abdomen and waist, and glue the abdomen hairy hook; 3. Stretch the end of the double Y cross strap to the abdomen, adjust the tension properly and bond; 4. After wearing, straighten your shoulders;Guaranteed Satisfaction: Reach out for any concerns regarding size, support, or quality. We offer replacements or refunds to meet your needs. Posture Rectification: Relieves tension and trains muscles for proper posture by gently correcting cervical and thoracic conditions, ensuring correct spinal alignment and support. Breathable Comfort: Crafted from soft, breathable neoprene, allowing 2 hours of comfortable wear daily for optimal results, suitable for work, learning, and leisure, excluding sleep and exercise. Customizable Fit: Available in three adjustable sizes, tailored to fit your waist precisely. For size details, refer to the accompanying image. Comprehensive & Ergonomic Support: Offers extensive coverage for your back, shoulders, and waist, reducing strain on the spine and muscles with ergonomic design.