Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Undercover FX21029 Tonneau Cover Flex 21-24 F150 5'7" (Includes Lightning)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
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.- Ultra Low Profile Design
- Allows For Full Access To Your Bed
- Built In Prop Rods Secure The Cover
- Plastic Buckles And Straps Included
- Rubber Seals And Drain Tubes Channel Water Away
- Easy Clamp-on design and 3 Year Warranty
Additional Attributes:
- GTIN: 840114303440
- Rails To Install: Yes
- Paintable: No
- Material: Aluminum
- Low Profile: Yes
- Key Lockable: No
- Install Time: 15 Minutes
- Full Bed Access: Yes
- Front Opening: Yes
- Color: Black
- Actual Color: Black
- Finish: Textured Black
- Works w/Toolbox: No
- Style: Hard Folding Cover
- Sits on Truck Rails: Yes
Packaging:
- Quantity of Each: 1
- Package UOM: EA
- Dimension: 28.000 x 68.000 x 8.000 inches
PDF:
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 871 reviews
Sort
Product Reviews
★★★★★ 3
Cute tall shelves but not depth enough!
These are nice, but although they aren't depth enough from the wall. They are no bigger than 2.5-3 inches depth. If you have photos or any other narrow items, you'll be perfectly happy. But for books they are not good at all. Unfortunately I returned them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 21, 2025
★★★★★ 3
Misinformed dimensions
This product misinformed me of size. It’s 47.235” in length not 48” as advertised. This is just another means of manufacture cheating customers with false information. I did not return as I was just moving into home. I was also in a hurry to finish the installation since I bought three of these not knowing the truth. You can make your own choice but I needed 48” and paid for 48” and got shorted. I used the shipping box to make an template to install brackets that manufacture did not provide.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 4, 2025
★★★★★ 1
Terrible for the money
I purchased 2 sets…for the money I highly suggest going to an actual store to purchase…very low quality and looks horrible…I don’t want a replacement which was all that was offered…not happy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 16, 2026
★★★★★ 3
One out of the four shelves was badly bowed
Exactly what I was looking for but the reason for only three stars is thatone out of the four shelves is extremely bowed, but I only needed three so I just kept them. The quality on the other three is good they are a lightweight wood and anchored to the wall. Well, they seem pretty solid.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 3, 2026
★★★★★ 5
Will buy again
Color: Walnut, Size: 2 Pack
Great color, hardwear was easy to install, quality great, very stable, all in great fit great size and love the look
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 27, 2026
recommand products
ELFLIQ Nic Salts ELF BAR Pink Grapefruit
15.99
Deluxe Crystal Prime 18k Puffs Blue Razz Cherry Prefilled Vape-£10.99
10.99
ZAP! INSTAFILL 3500 Puffs Coffee Tobacco Vape-Just for £12.95
12.95
Fumot 12000 Puffs Red Apple Ice Prefilled Vape- Only for £11.99
11.99
ZAP! INSTAFILL 3500 Puffs Blue Fusion Vape-Just for £12.95
12.95