Patent attributes
A tonneau cover system for a vehicle having a cargo box. A first side rail and a second side rail are coupleable to opposite lateral sides of the cargo box. The first side rail and the second side rail include a side rail retention member. A tonneau cover is configured to cover the cargo box and extend between the first side rail and the second side rail. First and second sides of the tonneau cover include at least one tonneau cover retention member. The side rail retention members cooperate with the tonneau cover retention members to maintain the first side and the second side of the tonneau cover in cooperation with the first side rail and the second side rail respectively, and thereby resist lifting of the first side from the first side rail and the second side from the second side rail.