See More

UnderCover ArmorFlex

Starting At*: $1059

Select Year Select Make Select Model

Need your product faster? Visit your local dealer for expert installation and superior service


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 comes backed by a 5-year warranty.

If you wish to learn more about the ArmorFlex visit our FAQ page





  • 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


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.

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.


395 Total
Brian C.
5 / 5
10 June 2021
Perfect fit
Perfect for my 2021 Ram TRX
Timothy S.
2011 Chevrolet Silverado 2500 HD
5 / 5
8 June 2021
The Ulta Flex cover is a light years advance on the vinyl cover with velcro closure. The South Carolina sun corrupted the mastic securing the tooth strip for the velcro so the cover was no longer weather tight, and was coming loose at highway speed. None of that is an issue with the Undercover product.
Albert D.
2019 Ford F-150
5 / 5
4 June 2021
I have had the Armorflex hard cover on through some very heavy rains here in Texas over the past few weeks. There is only slight leakage of rain water into my bed. I bought this cover to replace a rolling bed cover that leaked rain water really bad. Highly recommend this product. I have only had this on my truck for a month and a piece so I cannot comment on the long term reliability of the cove... Read More
jatinder b.
2019 Ram 1500
5 / 5
16 May 2021
it looks really nice and sturdy
Wayne B.
2021 Ford F-150
5 / 5
8 May 2021
Nice cover
Kent C.
2021 Chevrolet Silverado 1500
5 / 5
6 May 2021
Very easy to install. My 3rd Undercover Flex . I am liking the Line X feature.
Orlando D.
2011 Chevrolet Silverado 1500
5 / 5
30 April 2021
Good quality
Aderon B.
2017 Nissan Titan XD
5 / 5
23 April 2021
The cover is what I had imagined. It is very sleek and durable.
Pete H.
2019 Chevrolet Colorado
5 / 5
21 April 2021
I originally bought the ArmorFlex hard folding cover for my 2016 Chevy Colorado in early 2019 installed easily, looked great, and performed the way it should. Unfortunately I got rear ended and my 2016 truck was totaled BUT NOT the ArmorFlex hard folding cover, the bed rails bent outward forcing the back part of the cover to flip forward preventing it from being damaged. I then bought a 2019 Color... Read More
Garry G.
2007 GMC Sierra 1500 Classic
5 / 5
18 April 2021
Have used other products of UnderCover for years. Would recommend this company to anyone who needs accessories.