Amazon.com: Undercover Flex Hard Folding Truck Bed Tonneau Cover | FX11020 | Fits 2019 - 2021 Chevy/GM Silverado/Sierra, works w/ MultiPro/Flex tailgate (Will not fit Carbon Pro Bed) 5' 10" Bed (69.9") :
Truck Accessories Undercover Flex Tri-Fold Tonneau Cover Fit for Ford F-150 Truck Bed Cover - China Truck Accessories, Roll up Tonneau Cover | Made-in-China.com