Size 1 fits waist circum. 27.5 -31.5 * New and improved contoured knit has greater breathability and provides better stretch control for a more comfortable correct fit * Effectively stabilizes and relaxes the back * Lightweight breathable knitted lumbar support incorporating an adjustable anatomically contoured silicone insert stabilizes and relaxes the lower back muscles * Silicone insert with raised nodules provides intermittent compression to the soft tissue leading to increased circulation and stimulation of muscle activity * Promotes proprioception thus heightening sensory awareness in the lower back for increased stabilization * Anatomical knit has controlled compression that is graduated at the edges to prevent rolling of the support * Velcro