Trailer mainly intended for transport of root crops as well as material for silage. The smooth surface of the interior of box-body prevents damages to the agricultural produce while their loading and unloading. Trapezium-shaped box-body facilitates unloading of the trailer. The drawbar is equipped with oil-pneumatic springs which allows smooth regulation of height and pressure on the drawbar within 1-3t range without leaving the cabin. Additional advantage of the trailer is mechanism of automatic locking of the rear flap. The rear lights are fitted high to the box-body and they are additionally secured against damages and dirt by adjustable bumper. The vehicle can be fitted with additional extensions of 300mm or 600mm height, which significantly increases the vehicle’s volume. What is more, the loads can be transported with one extension demounted from the box-body which allows to lower the loading height without significant limitation to the vehicle’s capacity.