Built to prevent hyperextensions on surgical and non-surgical knees, the DonJoy Performance(R) Bionic Fullstop Knee Brace focuses on fully protecting your ACL with its Fullstop dampening hinges to halt your movements so your rehabilitation process doesn't regress. Comfortable Compression Dual-composite neoprene and mesh material regulate temperature to keep you cool Easy-grip pull tabs provide quick and simple on and off without the use of laces Four-strap design allows you to customize the fit for an optimal feel Support and Stability Dampening hinges activate at 145deg to halt hyperextension at 170deg Anti-migration technology limits the brace from slipping for consistent protection and a close fit Hinges help build muscle memory on surgically-repaired knees to prevent future injury Multiple strap construction enhances joint support while ensuring your ACL is protected Key Details Recommended for knee support Stabilizes your knee so joints support major ligaments like the ACL Fullstop dampening hinges make you come to a full stop when you're at risk of hyperextension Simple design avoids laces and bulky straps for natural comfort Anti-migration technology stabilizes brace to avoid slips Neoprene and mesh construction ensure maximum comfort through temperature regulation Features reflective material for enhanced visibility Fits left or right knee DonJoy Performance