The DonJoy Performance Bionic Drytex Knee Sleeve is a joint stabilizing, bilateral hinged knee sleeve with an open patella design to help protect and stabilize the knee. Constructed with patented Drytex material, the Drytex Knee Sleeve is moisture wicking and breathable to help keep you cool and comfortable. In addition, the dual, quick-strap design allows for easy adjustments during activity. Features: Open Patella buttress helps protect and supports the knee cap Bilateral polycentric hinges for ligament stability and protection Patented Drytex Material for moisture wicking, cool and comfortable wear Cushioned Anti-migration hinge covers for added comfort and anti-migration Mesh popliteal for breathability and comfortable fit behind the knee Dual quick-straps for an adjustable, secure fit during activity Sleeve design for easy application and a secure fit Reflectivity for enhanced visibility in low-light conditions Anti-migration silicone hem helps to eliminate slip Fits right and left knee