A travel trailer having exterior unitary lower and upper shells, an interior lower shell defining a pre-molded floor and side walls with a seating area, a cabinet for refrigerator and stove top, an opposing bench, a bathroom sink, and defining an aisle centrally therebetween; a shower pan attached to a side wall; an interior upper shell defining a pre-molded ceiling, side walls, and storage areas; a wall defining a door to a bathroom portion; and a wheeled chassis connected to the exterior lower shell with an extending tongue for attaching to a trailer hitch of a motor.