Cargo Max XRT, the sport utility trailers that are redefining an industry. A key factor setting the Cargo Max apart from competitors is its Ultra-Body. The Ultra-Body is a thermoformed body, using a single piece of high-density polyethylene. This process creates a rugged and durable bed that will last for many years. Mated to the Ultra-Body is an aluminum frame super structure, with all joints fully welded for strength and rigidity. The Ultra-Body and aluminum frame will never rust, rot or need paint ever. The added benefit of using a polymer body and aluminum frame is a trailer that is lightweight and can be towed by virtually any vehicle.