A removable air bladder, juxtaposed between support materials, expands or contracts within special voids of orthosis devices. An orthosis system comprise one or more removable air bladders placed on one support material or juxtaposed between two support materials, each of the air bladders being disposed to inflate and deflate by storing and releasing a gas through an airline having a release valve. A pump may be operatively connected to the air line for pumping gas into the air bladder. A pressure sensor may be disposed adjacent to the air bladder to measure pressure of the air bladder against one of the support materials to determine when the pump should be powered on or off. At least one expansion limiter straps may be disposed to control a maximum distance the support materials can be moved apart when the air bladder is inflated.
