Four-way stretch, 1/8" neoprene that gives uniform compression. Removable U-Buttress can be positioned in the superior or inferior position. Medial and lateral heavy-duty hinges for a high level of stability. Unique soft-seam construction is smooth to reduce irritation caused by conventional methods of seaming. Two circumferential straps with loop lock closures help limit migration and control the patella. Color: Black Latex Free: Yes Length Inches: 10.25 in Material: Neoprene Max Circumference: 24 in Min Circumference: 22 in Open or Closed Patella: Open Removable Buttress: Yes Size: 4X-Large Stays: Hinged Medial & Lateral Strap Style or Includes Straps: 2 Hook & Loop Closure