Herewith is a truck cap for removably covering a vehicle bed. The truck cap includes a first and second cover member extending between a cab and a tailgate of the vehicle. The cover members are pivotably connected to driver and passenger side panels which adjoin the vehicle bed. The cover members pivot between an open position and a closed position. Raised portions are formed along the top surfaces and extend over abutting edges of the cover members opposite the pivot edges. The abutting edges are in abutment when the cover members are in the closed position, such that the raised portions interlock to cover the abutting edges. The cover members are preferably formed of a plastic material by a rotational molding process.