An apparatus for a pickup truck box cover includes a frame having a generally flat rectangular shape and configured to reside in a plane generally perpendicular to a bed of the pickup truck and proximate a back of a cab of the pickup truck. A means joins the frame to a frame of the pickup truck. A means joins the frame to the pickup truck box. A top surface is removably joined to the frame and configured to extend back from a top portion of the cab of the pickup truck along a sloping plane intersecting a plane containing the bed of the pickup truck. Side panels are removably joined to the frame and configured to extend from the top surface to the bed of the pickup truck where, in conjunction with the pickup truck, a shape resembling generally flat bottom airfoil is formed.