Ergodyne® ProFlex® 1100SF Back Support ProFlex® provides essential lower back abdominal support. The patented non-conductive Sticky Fingers® stays are durable and conform to body for optimal support of the spine and prevent ride up. The belt features adjustable, detachable suspenders, and woven power bands that pull forward and fasten securely with Velcro®. Cool and lightweight, yet holds up to abrasion for maximum wear. Size is determined by waist measurement.