The Mueller ATF 3 improves upon the previous ATF 2 ankle brace with the self-adjusting, internal strapping system. Providing unrivaled support of the Anterior Talofibular Ligament. Combine this with the improved lacing column, ensuring a more secure fit across the top of the foot whilst still maintaining optimal flexibility with the re-engineered stabilizers. This is the most comfortable ATF ankle brace to date with the vented mesh fabric, helping to control both heat and moisture.