Feel confident with every twist and turn in the DonJoy SE-4 Legend knee brace. Designed for moderate to severe ACL, PCL, MCL and LCL injuries, this model is an affordable and reliable option for anyone needing support. Those familiar with DonJoy hinged knee braces will recognize the patented four-point dynamic leverage system technology. This smart design reduces strain on the ACL by redistributing load placement to four points surrounding the knee. It’s paired with a slim profile and aircraft-grade aluminum, so it's no surprise this DonJoy ACL brace is top rated. The SE-4 does require a custom fitting to find the perfect size and placement. Once you get the right size, you have a high-quality knee brace for sports like tennis, skiing, baseball and more! Are water sports more your thing? Then the SE-4 is one of the best waterproof knee braces because it is safe for both freshwater and saltwater activities. Get your SE-4 Legend knee brace today!