Semi-rigid lumbosacral back support made from a breathable elastic knitted fabric and featuring a Poromax interior to facilitate ventilation and moisture absorption. This fabric has been treated with Thermy-tex, which prevents the growth of the bacteria that cause bad odours. At the back, it features 4 pre-formed, adjustable steel stays and, at the front, flexible stays to provide greater stability and abdominal support. Velcro closure system with two straps and finger loops to facilitate the traction of the elastic during fitting. ®