The A2-DX provides the strongest ankle support for moderate to severe ankle sprains. The ankle brace is made with i-Fit and a-Fit technology for an anatomically (right & left) correct fit. The Exo-Grid (Xternal) is a dual exterior molded support structure with Grip Tech (anti-migration), that prevents the ankle from rolling inward (inversion) and outward (eversion). The Exo-Grid (Xternal), along with the anchor strap, assists in preventing high ankle sprains by reducing the separation of the two lower leg bones where the ankle meets. The X- Strap Stabilizers with Grip Tech located underneath prevents the foot from shifting forward. Ideal for preventative application and/or for supportive use after moderate or severe medial, lateral, and high ankle sprains. This is a preferred option for many basketball and volleyball players. On average it can cost an individual at least twice as much for tape vs bracing for a season. The A2-DX is trusted to protect the ankles of elite athletes such as Stephen Curry.