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UnderCover Ultra Flex

Starting At*: $989


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A hard folding truck bed cover that comes with overwhelming new features and is topped off with an alluring matte finish. The Ultra Flex is in a category of its own. From the irresistible outward appearance to each component beneath the cover, the Ultra Flex has been carefully crafted to be the ultimate all-purpose truck bed cover.

All-new features that accompany the Ultra Flex include an integrated luminous rail light system for enhanced night vision, and a dual action tailgate seal, allowing for easy operation and you to close the tailgate with the cover-up or down. Multiple riding positions allow the user to ride with full access to their bed, and full weather protection is available if the cover is in the fully closed position.

Ultra Flex is an easy clamp-on application and can be installed and removed easily with our newly designed L-Rail’s. What’s more, the Ultra Flex is backed by a 5-year warranty, making it the most desirable folding cover on the market.

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


  • Ultra Low-Profile Design w/ a Stylish Matte Black Finish
  • Integrated Luminous Bed Rail Light
  • Carpeted Underpanels Provide a Finished OEM Look
  • Dual Action Tailgate Seal for Easy Operation
  • Made in the USA


Please feel free to make use of the Ultra Flex installation instructions below to assist you. 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 Ultra Flex carries a 5-year warranty.

Stylish Matte Finish

Solid aluminum panels polished with stylish matte black finish.

Ultra Finish Under Panel

A refined and Ultra tough carpet-like finish gives the Ultra Flex an OE look and feel.

Integrated Rail Light

The integrated luminous rail light provides illumination in your truck bed at night.


9 Total
Richard C.
5 / 5
19 February 2018
No more climbing under the tonneau cover or having to fold it back and climb up in the bed to get things that slid to the front of the bed.
Paul H.
5 / 5
6 February 2018
Easy installation, works great.
James P.
5 / 5
7 November 2017
This tool is sturdy and durable. Works great and helps you avoid climbing up into the bed to retrieve hard to reach items. My only suggestion for improvement is to place a rubber or plastic tip on the end of the device to prevent it from inadvertently piercing heavy containers or packages when pulling them toward you.
Peter R.
5 / 5
17 July 2017
Edward H.
5 / 5
19 June 2017
great inexpensive item which does the job.
Kevin S.
5 / 5
8 June 2017
This makes most things easy to retrieve without jumping into the bed.
Jeff W.
5 / 5
6 June 2017
it works very good for reaching things that are up front in the bed of your truck and it stores up on the side of the bed out of the way and is very easy to reach highly rec amended for any body that has stuff slid all the way up front of the bed of your truck it rely works great
Bernie H.
4.3 / 5
26 February 2020
Good product just a little pricey.
Todd B.
( Danvers, MA )
4.3 / 5
20 February 2017
comes in handy, wish it was longer