The innovative posture-correcting bra boasts a patented X-shaped structure, which scientifically activates back muscles through targeted traction from shoulders to scapulae, enabling wearers to open the shoulders and straighten the spine by simply fastening the closures. To avoid uncomfortable tightness, the bra combines elastic composite fabric and memory yarns for flexible support, with an adjustable 2-closure 5-stage design ensuring a snug fit. Furthermore, double-layer progressive 3D cloud wide-set cups collaborate with W-shaped jelly strips to achieve comfortable support and natural lift.