ZAMST ZK-7 Knee support For inhibiting lateral and anterior movement Design suitable for the case in which below-knee slips forward, etc. You may dash and stop suddenly by preventing anterior motion. This product provides individualized fit. Patella pads compress around the patella A semicircular patella pad that gently and precisely compress the patella enhances stability of the knee. Realizes a comfortable fit Power double raschel knit fabric that has a combination of breathability and proper compression realizes a comfortable and good fit. In addition, you may stretch and bend the knee smoothly without uncomfortable feeling. Multiple supports for the movements with double strap The X (cross) strap on the front and bottom of the main body and the parallel strap on the thigh and the back of the knee effectively compresses to accommodate the movement of the muscles of the thigh and lower leg. They also suppress the anterior movement of the lower leg. How to select proper size of the ZK-7 Measure the circumference of the thigh 16 cm above the center of the patella. If your measurement falls between two sizes, choose the larger one.