This Sale is For One (1) McDavid Knee Brace 422 Knee Brace Size 2XL ~ 17.5" - 19" Find your size by slightly bending your leg and measure knee circumference directly over the patella (kneecap) Dual Disk Hinges Level 3 Maximum High Performance Neoprene Black in Color 100% Latex Free No gears; each sidearm is independently articulated with cushioned hyperextension stops McDavid?s lightest hinge has wider arms to aid in maintaining strength Engineered straps assure personalized fit Latex-free neoprene provides thermal compression Open 360? padded buttress isolates and supports the patella Bound edges prevent irritation Perforated back panel provides heat and moisture management and all-around comfort Exterior layer of nylon fabric for durability Fits left or right Knee brace is new in the original packaging Please view photos for a good description of this item Thank you!