Slim design fits comfortably beneath clothing while providing firm support for strained lower back muscles. Easily-adjustable outer straps Allowing minor changes in tightness to suit various postures without the risk of compromising support". Dynamic stabilization Dual layer strapping design for convenience throughout the day and reduces strain, helps correct spinal posture, provides lumbar spine stabilization". Lightweight & thin profile Made with ultralight and breathable material, it supports your body frame, focusing on firming up the lumbar region. This makes BS33 a suitable companion as you go about day-to-day activities. ". All-purpose support utilizes 4 embedded splints positioned at the lumbar to support the lower spine and muscle groups; supports good posture and reduces minor back strain without restricting lateral bending.