High Back Multi-Tilter Mallorca features thickly padded seat upholstery and a pronounced, built-in lumbar support for extra lower back support. All models are standard with either Ultracell or molded heavy duty seat foam. All models have a heavy duty 3" wide back upright. All models, have outer back panels retained by trim screws for extra security. All models, have standard clear vinyl bumper guards around their outside backs. An optional ballistic nylon outer back fabric resistant to impact damage is available at an upcharge. All models are rated for Multi-Shift use for people up to 350 pounds.