Our Quadrant Knee guards feature a perforated foam interior with a stitched-in foam patella donut to caress the knee. The guards are also asymmetrical, so there's a specific left and right side which match the contour of your legs for improved comfort and a better fit. We finished it off with complete edge binding to prevent chafing, and 2 integrated elastic straps for a secure fit. Imported. 2011 Model.