The B2 immobilizes, compensates for weakness and corrects deformities, allowing it to be used to support weakened lower limbs or to reposition limbs with contracted muscles into a more natural position. AFOs are used in the management of peroneal paralysis, peroneal tendon injury, tibial tendon injury, Achilles tendonitis, Achilles tendon rupture, and in postoperative Achilles tendon surgery.

B2 can also be used to contain foot drop caused by various neurological, musculoskeletal, and spastic conditions.