The Knee Support Hinged (Neoprene) is a versatile knee support with the following features:Silicon buttress along the patella openingBiaxial hingeAnti tourniquet effectFour-way compressionNeoprene provides therapeutic warmthIt is made from Neoprene bonded nylon fabric, which is four-way stretchable.It provides optimal compression, more comfort, good grip, and better durability.It has appealing aesthetics with good color fastness. It retains body heat for pain relief and quicker healing.The rigid Bi-axial hinge mimics the natural knee joint, providing good offloading action and free flexion movement.It supports the cruciate ligament at all flexion angles.The anterior patellar opening with patellar buttress relieves patellar pressure, holds the patella in position, provides massaging action for increased blood flow and quicker healing.The anatomical shape allows perfect fitting, good grip, and no bunching on knee bending.Anti-tourniquet strapping ensures no constriction to blood flow but better grip of the product to the body.Size Chart: SizeInchesCMSmall14.8-17.237-43Medium17.2-19.643-49Large19.6-2249-55XL22-24.455-61