Fas-Top Tonneau & Soft Top Bed Cover (2-in-1) for sale. It was only used for approximately 6 months in the summer/fall of 2020 before I bought a new truck and has been sitting in my garage since then. I had on a 2011 Chevy 3500 long box (8'), but it may fit other long box years and models. It comes with all the hardware clamps & bolts to attach the tonneau cover rails, the tonneau cover top, and the soft topper. It's practically still new (retail is $1500+)!
Extremely versatile: Can use it as a regular tonneau cover and quickly pop up the topper if you need it. Liked the product so much that I have one on my 2021 Ram.