SIZE: 5 * CIRCUMFERENCE 10.5 - 11.5 * Comfortable lightweight breathable knitted elbow support incorporating two anatomically contoured silicone inserts surrounding the epicondyles and lying over the flexor and extensor muscles * Graduated compression at the edges prevents constriction of circulation and rolling * Does not retain heat - machine washable * Ideal for epicondylitis elbow strains or sprains overuse syndromes and pre- and post-operative conditions chronic edema * Sizing: With arm slightly bent loosely measure the circumference of the arm 4.75 below the lateral epicondyle * Natural *