Made of a four-way stretch, 1/8 inch neoprene that gives uniform compression, features a tubular round buttress for patella stabilization. The unique soft-seam construction is smooth to reduce irritation caused by conventional methods of seaming. For sizing measure around the knee cap. Available in sizes small (13-14 in.), medium (14-16 in.), large (16-18 in.), x-large (18-20 in.), and xx-large (20-22 in.).