UnderCover ArmorFlex Truck Bed Cover

Starting at $1,029.00


The new ArmorFlex hard folding cover is designed to protect your truck bed and its contents while maintaining its strength, style, and durability. Heavy-duty panels are coated with a LINE-X® specialty automotive coating designed to provide advanced protection from dents and scuffs, even in the most extreme environments. The dual-action tailgate seal offers universal tailgate operation, allowing you to close the tailgate with the last panel of the cover-up or down. ArmorFlex is proudly made in the USA and comes backed by a 5-year warranty.

  • Heavy-Duty Panels w/ Premium-Grade LINE-X® Coating
  • Low-Profile Design w/ a Stylish Matte Black Appearance
  • Dual Action Tailgate Seal
  • Automatic Latching Panels
  • Made in the USA


Please feel free to make use of the UnderCover ArmorFlex installation instructions below to assist you with the installation. Upon purchase you’ll receive vehicle specific instructions. However, if you have further questions or need technical assistance, please call one of our knowledgeable installation experts at 866-900-8800.


The UnderCover ArmorFlex carries a 5-year warranty.


Is the ArmorFlex Waterproof?
The ArmorFlex is weather resistant, utilizing rail channels and drain tubes to move water away from the bed. Ultimately, no folding cover is completely waterproof as there are tailgate gaps and other areas that may allow some intrusion.

What is the install time on the ArmorFlex?
The ArmorFlex can usually be installed in about 45 minutes.

Can I drive with the cover in the upright position?
Yes. The ArmorFlex utilizes strut mounts to stabilize the cover while driving.

Will the cover work with a 5th wheel hitch?
Yes. There are two available cover positions while pulling a 5th wheel. Upright and ¾ bed access.

How fast can I drive with the cover in the upright position?
We do not assign a speed rating to the ArmorFlex in the upright position, but it is well equipped to handle legal interstate speeds.

What is the warranty on the ArmorFlex?
5 Years on workmanship, materials, and hardware.

Can I see out the back window with my ArmorFlex fully upright?
No. The cover in the upright position will block view out the back window.

How easily removed is the ArmorFlex cover?
Simply unscrew the two elevator bolts and lift!

How can I get the side seals to lay flat on the ArmorFlex Cover?
After a day or two, direct sunlight will be absorbed and help the seals lay flat.

Do I need to drill into my truck when installing the ArmorFlex?
No. The ArmorFlex utilizes clamps and a no-drill installation.

Does the ArmorFlex work with a standard toolbox?
No. ArmorFlex cannot be installed with a toolbox.

How secure is the ArmorFlex cover?
The ArmorFlex secures your cargo with the help of a tailgate lock. The only access point is the pull cord underneath to open the cover. If your tailgate is locked, your cover is locked.

Where is my ArmorFlex manufactured?
All UnderCover products are proudly made in the USA.

Is the ArmorFlex compatible with my bedliner?
Yes. The ArmorFlex will work with BedRug, spray-ins and any under the rail bed liner. ArmorFlex is also compatible with many aftermarket bed caps.

Damage Resistance

The ArmorFlex truck bed cover features LINE-X® specialty automotive coating for superior protection against scuffs, dents, and dings even in the harshest of environments.

Matte Black Appearance

The LINE-X® coating provides a stylish matte black finish appearance to your truck bed cover.

Dual Action Tailgate Seal

The dual-action tailgate seal offers universal tailgate operation, allowing you to close the tailgate with the last panel of the cover-up or down.


270 Total
Leveda M.
2020 Ford F-150
5 / 5
30 July 2020
It does have a little gap somewhere when it rains heavy it sometimes allow water to enter the flat bed.
shawn b.
2020 Ford F-150
5 / 5
30 July 2020
So far very impressed with every aspect of purchace.
Rob Nelms
5 / 5
29 July 2020
As Tough As It Is Good Looking
The UnderCover Armor Flex bed cover is simply awesome. The quality of the materials, build quality, fitment, execution of design and ease of installation are simply top drawer. I am a first time truck owner and I did it in less than an hour. It fits perfect, even the machined cut out around the assist rod on the driver's side of the bid was perfect. It looks very sharp and has the certain feel of ... Read More
Dean R.
2020 GMC Sierra 1500
5 / 5
21 July 2020
Great looking cover
Ken D.
2019 Chevrolet Silverado 1500
5 / 5
15 July 2020
Went on very easy
Sunshine R.
2020 Toyota Tacoma
5 / 5
10 July 2020
Power Plant is the place I go for all my needs for a vehicle. Awesome
ronald e.
2013 Ford F-150
5 / 5
7 July 2020
Replaced a 6 year old undercover tri-fold (basic) with this unit. Love them.
Karl W.
2018 Ford F-150
5 / 5
27 June 2020
Absolutely love this cover , super simple install, and great fit.
Jeff O.
2018 Ford F-150
5 / 5
27 June 2020
looks great and works well. Installation was very easy
2019 Ford F-150
5 / 5
19 June 2020