One of the outstanding features of our Form Fit Knee Products is our patented Three-Dimensional Molding Technology. This manufacturing process allows us to design a brace which effectively controls the bunching and irritation in the popliteal region, providing exceptional comfort to the wearer. - Accordion molding in the popliteal area eliminates bunching - Soft cushioned liner to offer unequaled comfort - Varied areas of thickness give additional protection - Lycra liner offers a breathable contact area for comfortable and extensive use - Three choices of buttresses to provide maximum patella support - Universal, U-Shape, or Donut.