Using a pulley system—comparable to lace-up shoelaces—the interweaving layout is often pulled and tightened at both sides of your physique to support your back without implementing pressure for the spine. By limiting contact with the spine, this brace can also help deal with related 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/