The tynor D-09 functional knee support is an anterior opening device which gives you the benefits of controlled compression around your knees, & provides immobilization and proper rigid support.The device allows a free movement of the knee joints.The wrap design with anterior closing gives the benefit of easy application and removal on swollen or asymmetric knees & provides customized compression.The ergonomic design with anti tourniquet effect makes no constriction to blood flow & provides a better grip of the device to your body.Manufactured by a leading manufacturer, the device comes at an affordable price. It comes in size XL- (22"-24.4")