Mueller® Adjustable Back Brace helps relieve lower back pain from strains, sprains, and muscle spasms. Double-layer design allows for a custom fit and provides adjustable compression to the abdomen and lower back. This premium back brace features breathable fabric for comfortable all-day wear. Removable lumbar pad cushions and compresses the lower back for concentrated support. Four steel springs conform to your back and provide firm lumbar support. Outer elastic straps allow for firm, adjustable tension. Main elastic band is 8-3/4" high for broad support.