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UnderCover Flex Tonneau Covers
This item requires Vehicle Fitment, please select Vehicle first!
OR if you know the Part Number you need, select from Options below.
OR if you know the Part Number you need, select from Options below.
Part #:UND-FX21019
Availability:In Stock
Free Shipping
Rating: 
ONLY Fits 5.7ft Bed SuperCrew (4 Full Size Doors).
Price: $1,199.99
- Low Profile Design
- Heavy Duty Construction
- Weather Resistant
- 3-Year Manufacturer Warranty
- Three Secure Driving Positions
- Fiberglass Reinforced Panels.
- UV Protective Black Finish
- Made In The USA!
The UnderCover Flex is a hard folding truck bed cover that gives you the ultimate control of your truck bed, offering three secure riding positions. The cover is easy to remove, requires no drilling for installation, and is mounted flush with your trucks bed rails making it the most watertight hard folding cover on the market. Each panel is made of high quality FRP composite material; which is lighter, stronger and more dent resistant than aluminum. Each Flex has a bed rail mounting system equipped with rubber seals and drain tubes that carry water away from and out of the bed, keeping your gear dry and secure. The Flex is backed by a 3-year warranty making it America's favorite hard folding tonneau cover.
California Residents: Prop 65 Warning
Customer Reviews
UnderCover Flex Tonneau Covers fits the following vehicle(s):
- Part Number fits: UND-FX21019 (24526)
- 2015 Ford F-150
- 2016 Ford F-150
- 2017 Ford F-150
- 2018 Ford F-150
- 2019 Ford F-150
- 2020 Ford F-150