★Correction Principle: Following the scientific logic of physical orthopedics, the corrector applies sustained yet moderate pressure to the outwardly protruding sternum. Through consistent wear over a specific period, the sternum gradually realigns, ultimately restoring its flat, normal physiological shape. The entire process is safe and non-invasive, without affecting daily activities or physical development. ★Sternal Projection Support: Features a 4cm-wide anti-slip strap that significantly increases contact area with the body. Combined with an anti-slip texture design, it ensures a secure fit that resists shifting. Paired with a gear-adjustable strap offering a 25–27cm range, it flexibly adapts to different body shapes and wearing needs. ★Day & Night Wear: Constructed with a thickened resin double-panel core for balanced support and comfort. The outer layer uses skin-friendly fabric to prevent direct contact between the panel and skin, reducing friction irritation for all-day wear that protects your skin. ★Reversible Wear: Eliminates single-direction limitations. Whether worn front-side up, back-side up, or upside down, simply press the central raised area to precisely target correction zones. Easy operation without compromising effectiveness. ★ Comprehensive professional correction: Features a large-area coverage design with a dual-sided chest-hugging structure that avoids chest compression, ensuring unobstructed breathing. Simultaneously, it reserves ample space for breast development, balancing corrective efficacy with the body's growth needs.