Features and Benefits:Flexible dorsal stays support the spinal muscles and prevent over-straining - Four strong elasticated straps apply even compression to the core to relieve pain and promote recovery - Abdominal supports improve posture and relieve tension through the whole core - Strong compressive elastic material To enhance posture control - Independent superior and inferior compression adjustment for optimal anatomical fit - XSmall56-68cm22”-26.5”Small68-82cm26.5”-32.25”Medium82-98cm32.25”-38.5”Large98-116cm38.5”-45.5”XLarge116-136cm45.5”-53.5”