The BOA Duel TLSO is a unique prefabricated orthosis for post-operative, post traumatic, or chronic spinal pathology. The orthosis provides full circumferential rigid support from T-2 through S-5 and restricts forward, lateral and posterior motion and encourages a hyperextension posture. The anterior and posterior panels are removable and heat formable to customize fit and functionality of the brace when worn. The anterior sternal assembly can be locked to prevent tampering and assure proper fit when donning and doffing the assembly. Elastic shoulder straps adjust easily and are wide to minimize any pressure. Compression adjustments are made by pulling each of the lateral lacer assemblies handles to the desired level of comfort for the patient. The components are washable. The TLSO is made of a breathable foam and mesh laminate that allows for optimal comfort to the patient.