Dynamic Control of the patella reduces pain and assists in a successful rehab Trakaderm U-shaped buttress allows for treatment of multiple patella indications by adjusting the buttress to the symptomatic contact point no matter the malalignment Fits both left & right Removable Hinges provide additional medial and lateral stability The Hely Weber Shields II Hinged Brace #6675 provides exceptional dynamic control of the patella and reduces pain for a successful rehab. The brace features a unique Trackaderm U-shaped buttress that assists in treating malalignment and poor tracking by directing the patella in a more normalized direction. The force flap and the buttress are completely adjustable allowing the user to control both the orientation and amount of patella control desired. The Hely Weber Shields II Hinged brace has removable hinges on the sides for added medial-lateral support. Independent thigh and calf straps are used to ensure a more customized fit compared to traditional slip-on styled braces. Fits mid patella knee circumference 13.5" - 15" AND 4" above mid patella circumference 14" - 16". Measure both circumferences before ordering - must be withing both measurements for an accurate fit.