A hybrid of safety, support & comfort, this ProFlex Back Support helps you win your workday tug of war & reduce the risk of back injuries. It bends over backward to merge true innovation with real performance to prove there's a better way when it comes to lifting something heavy. The all-elastic, 7-1/2" body offers extra-firm support. Adjustable, detachable suspenders help make sure it fits. Close easily with the single-strap closure. Design also features nonconductive polypropylene stays, stretchable bias binding with zigzag stitching, & rubber track webbing. The back support is great in material handling, construction, warehouse / distribution, maintenance, freight / baggage, assembly / fabrication & landscaping / grounds. The medium size fits waists that measure from 30" to 34".