Size Guide: This posture corrector is available in three sizes: M: 26'' - 29''(66-74cm), L: 30'' - 40''(75-102cm), XL: 41'' - 49''(103-125). Please measure your underbust circumference to select your size.If your measurement falls between two sizes, we recommend choosing the larger size for better comfort.

Key Features about this item:

【Posture Correction】 Our Posture Corrector features an X-Back design to gently pull shoulders back and support better spinal alignment, helping improve posture and encouraging a more upright, confident stance.

【Support ang Stability】 Our upper back brace features supportive stays that combine flexibility with firmness to enhance spinal support and help relieve neck, shoulder, and upper back pain caused by poor posture.

【Breathable Triangular Cutout Design】 Our posture back brace for women features a triangular open-back cutout and a large area of breathable fabric to help prevent heat buildup, reduce back pressure, and keep you comfortable throughout the day.

【No Underarm Digging Comfort】 Our back straightener features adjustable underarm straps that let you fine-tune the fit, helping prevent pinching and rubbing under the arms while keeping the brace comfortably in place for all-day wear.

【Wear Under Clothes】 Designed with a low-profile, lightweight build that sits smoothly under everyday outfits, our posture corrector stays discreet and comfortable—so you can improve posture at work, at home, or on the go without bulky lines showing.