Black * Xxlarge 20 - 21 * When Sizing Measure Slightly Bent Underneath Knee Cap * Useful In The Treatment Of Patella Dislocation Chrondomalacia Patella And Osgood Schlatters Disease * Allows More Flexiblity Around The Kneecap * As The Kneecap Is Free From Compression Any Tenderness Or Bruising Present On The Kneecap Itself Will Not Be Aggravated * Captures Body Heat & Increases Blood Flow * Allows Skin To Ventilate & Release Moisture