In 1969, McDavid designed and developed what was to become the first widely used lateral protective knee brace in football. McDavid has come far from their beginnings and now offers a complete line of ergonomic and comfortable knee braces and supports in 3 levels of protection. The 429 Hinged Knee Brace offers Level III protection from knee ligament injuries and instability. A knee sleeve, such as the McDavid 421 Knee Support, can help provide relief from patellar tracking disorders such as chondromalacia. The McDavid 510 Knee Sleeve provides compression and warmth during athletic activities, after a knee injury, or for those with arthritis.