Optional field-installable headrest with ENERSORB foam adjusts up/down, and has an innovative coat hook built into its design. The breathable mesh back with ABLEX patterned weave provides generous lumbar support while allowing for dynamic movement. The contoured thoracic lumbar support pad with ENERSORB foam can be easily adjusted up/down and in/out for personalized support and comfort. Spring-loaded ball bearing ratcheting system (patent pending) operates the armrests, which move up/down and in/out, complete with lockable swivel and forward/backward arm pad adjustment. The energy-absorbing ENERSORB foam seat, lumbar and headrest foam offer unsurpassed comfort.