UnderCover develops some of the most versatile, well-made tonneau covers available. With products like the UnderCover Flex and Classic, there is no denial that these may be some of the most robust covers to date. UnderCover is known for the quality of there hard top tonneau covers like the UnderCover LUX and SE. These covers are designed with a proprietary blend of ABS plastics and advanced polymers to be extreme lightweight and durable. As well as designing exceptional hard one-piece tonneau covers, UnderCover also makes Hard Tri-Fold Tonneaus like the Flex, which sits flush with the in bed rail mounting system and is both lighter and more durable than aluminum. If you want durability, functionality and style with your tonneau cover, UnderCover is what you are looking for.