The ATF 3 is a hybrid of the ATF® 2 and the XLP ankle braces and replaces both of those models. Inversion sprains (rolled ankle) account for approximately 85% of all ankle sprains. The ATF 3 ankle brace features a patented internal strapping system that self-adjusts to support the anterior talofibular ligament. This system helps protect against rolling the ankle without restricting jumping, speed, or agility.