Knee Supports with Round Buttress, Black Features Made of a four-way stretch, 1/8 neoprene that gives uniform compression Features a tubular round buttress for patella stabilization Unique soft-seam construction is smooth to reduce irritation caused by conventional methods of seaming. Specifications COLOR Black SIZE 2X-Large, 3X-Large, 4X-Large, Large, Medium, Small, X-Large, X-Small BRAND Curad LATEX FREE Yes Length Inches 10.250 IN MATERIAL Neoprene Max Circumference 13.00 IN, 14.00 IN, 15.00 IN, 16.00 IN, 18.00 IN, 20.00 IN, 22.00 IN, 24.00 IN Min Circumference 12.00 IN, 13.00 IN, 14.00 IN, 15.00 IN, 16.00 IN, 18.00 IN, 20.00 IN, 22.00 IN Open or Closed Patella Open Removable Buttress Yes Stays Spiral Medial Lateral Strap Style or Includes Straps No