Zamst ZK-7 Knee Brace - Men's Did you sprain your ACL, PCL, MCL, or LCL? Get serious knee support with the Zamst ZK-7 Knee Brace. Featuring Exo-Tech, the ZK-7 knee brace offers four-way ligament support to stabilize your knee while providing a personalized fit. I-Fit technology with adjustable fasteners allows variable compression levels. Kneecap Stabilizer secures the knee during intense athletic activity. Rom-Tech design allows natural movement for a confident performance. Flyweight fabric has a lightweight feel and V-Tech increases airflow to keep you cool and dry. Contents include nylon, polyurethane, chloroprene, polyester, and acrylic rubber.