Undercover · New
UnderCover 2021+ Ford F-150 Crew Cab 5.5ft Flex Bed Cover
MPN FX21029 · Store SKU undFX21029
Supplier stock checked 11/7/2026, 7:10:37 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
Introducing the next generation of folding covers -- the UnderCover Flex folding cover. Flex combines the best of both worlds, the security of a hard locking cover and convenience of a soft roll up cover. Constructed from the best materials available, Flex will withstand the abuse Mother Nature throws at it and keep coming back for more. Low Profile -- Ultra-low profile design rests inside the bed rails allowing for a very sleek look. Full Access -- Built in prop rods secure the cover allowing your truck to be driven with the cover fully open. Easy Removal -- Entire cover can be removed in seconds with no tools needed. Secure Design -- Plastic buckles and straps are included to secure the panels in the partially open position. FRP Composite Panels -- Lighter, stronger and higher dent resistance than aluminum. Weather Resistant -- Rubber seals and drain tubes channel water away from and out of the bed. Easy Clamp-on design. No other folding cover can match the Flex for versatility, security and function. Covered or uncovered, always an option with UnderCover. UnderCover Flex 2021-2027 Ford F-150 5ft. 7in. Bed (Includes Lightning) Ext/Crew-Black Textured UnderCover Flex 2021-2027 Ford F-150 5' 7" Bed (Includes Lightning) Ext/Crew - Black Textured Flex 21-27 F150 5'7" (Includes Lightning) Flex
Manufacturer fitment & guides
Check FX21029 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y
