Utilizing a pulley process—just like lace-up shoelaces—the interweaving structure is often pulled and tightened at both sides of your system to support your back without implementing pressure to your spine. By limiting Call with the spine, this brace may also help deal with relevant leg pain like sciatica. Material: Mesh https://allhealthmarket.com/product/medical-supplies/braces-splints-supports/back-support/lumbar-support-belt-double-pull-back-brace-waist-orthopedic-corset-pain-relief-large-sizes-l-xl-2xl-3xl-4xl-5xl-6xl/