Perfect for fairly serious to severe knee complaints and for daily use, work and sports. For maximum support, stability and reliability during sports and other heavy efforts. Now with a temporary 34% discount!   The McDavid 429X Hinged Knee Support is the new and improved stronger version of the McDavid PS II and together with the Bauerfeind Softec Genu, it\'s the only brace with protection level 3+. The McDavid 429X Hinged Knee Support is, in partnership with the Bauerfeind Softec Genu, one of the best and strongest knee braces out right now.