Troy Lee Designs 6400 Knee Braces (pair) Size Small Item on listing is listed as "used" but they are new in damaged packaging. Patent pending X-Fit Strap System securely wraps leg, contours with comfort, and overlaps hinges to maximize stability during flex. Bilateral support hinges with hyperextension stops and impact-absorbing base pads. Molded thermoplastic knee protection. Upper and lower compression fit straps for tailored fit. Abrasion-resistant knee cap covering for ultimate durability and longevity. Moisture-wicking frame liners and condole pads keep you cool and comfortable during extreme conditions. Hypalon pull-tabs offer easy grip when fitting. Sold in pairs (left / right).