Abstract: This invention relates to a conformable ankle brace constructed of a heat moldable thermoplastic material that can be formed in place around a patient's injured ankle. The moldable thermoplastic material is shaped in a manner that produces medial and lateral extensions for covering the medial and lateral malleoli of a patient's foot. A concave recess is formed between the medial and lateral extensions to improve strength and reduce cracking of the thermoplastic brace. A non-stretchable strap holds the conformable ankle brace in position against the ankle and leg. A stretchable strap secures the medial and lateral extensions or splints in place over the medial and lateral malleoli. Strategically placed pads of hook-textured material, that mate with loop-type material on the fastening straps hold them in place on the ankle brace. Optionally, the moldable custom-fitted ankle brace can beheld in place with athletic tape.