Ideal for personal and light industrial activities. Spring steel orthopedic boning stays for superior, firm support. The number of stays increases as belt size increases, to provide dependable support for all sizes. Two-way stretch power knit primary belt for comfort and flexibility when active. High-rise cut in front allows wearer to stand, sit, bend and crouch comfortably. Positive vertical locking system achieved with two-way stretch binding and rubberized interior stay pockets. Elastic knit cinch and shoulder straps. Shoulder straps easily adjustable from the front. Machine wash warm in mild detergent, air dry flat. How to wear: The support should be worn over the first layer of clothing--such as a shirt or t-shirt--but not over a vest or jacket. It should fit the curve of the lower back without bulk between the support and the back. The support should rest LOW on the hips, where low back pain occurs, between the navel and tailbone, over the lumbar vertebrae. Do not wear the support up high, as if it were a belt or a corset. Adjust the shoulder straps so the support hangs loosely at the level where it will be worn. If the adjustment is too short, it will cause the support to slide up on the body. The purpose of shoulder straps is to keep the support handy when worn loosely. The shoulder straps should not be so loose that they hang away from the body and could possibly become tangled in equipment.Reduces unexpected loading on the spine during trips or slipsNumber of spring steel orthopedic boning stays increase as belt size increases, for firm support for every wearer.High rise cut in front for added comfort while seated or bendingEasy-to-adjust shoulder strapsMeasure around hips just below navel: Large 38-inch to 44-inch