An ankle brace has a stirrup with a flat bottom portion and a first and second upright leg. Each of the first and second upright legs has an upper end and a lower end, the upper end having a circular opening therethrough and the lower end attached to the flat bottom portion. First and second pivot legs, each having a circular opening therethrough, are removeably and rotatably connected to the first and second upright legs respectively. First and second leg extensions are removeably connected to the first and second pivot legs, respectively. When connected, the circular openings in the pivot legs overlap the respective circular openings in the upright legs, and each pivot leg is rotatable about an axis through and perpendicular to the pivot leg circular opening. The circular openings in the first and second upright legs are positioned and sufficiently large to allow at least a portion of the malleolus bone of an ankle to protrude therethrough.