UnderCover Ultra Flex

Starting at $1,039.00

2019 Ford Ranger

Choose Your Vehicle

Choose a bed length…


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


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.
Interactive Image

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.


678 Total
Joseph M.
2021 Ford Ranger
5 / 5
2 August 2021
I really like the cover. It's exactly what I wanted. It has the security and appearance I was looking for. I highly recommend this cover.
jeffrey j.
2021 GMC Sierra 1500
5 / 5
31 July 2021
great product ,well built
Crista C.
2021 Ford Ranger
5 / 5
28 July 2021
I chose this product because it appears to be very secure for protecting cargo. Saleslady demonstrated several products & that helped me decide. Like your well-illustrated operation Instructions for reference.
Andrew J.
2021 Nissan Titan
5 / 5
25 July 2021
Looks great I love gun metal finish looks very nice on my 2021 black Nissan Titan.
Mikel H.
2021 Chevrolet Silverado 2500 HD
5 / 5
21 July 2021
Easy to install, watched your on line videos, had no problems fit perfect.
Richard F.
2020 Ford F-150
5 / 5
21 July 2021
Quality work, quality product, quality service. Truck Works got me in and out in quick order.
Armando G.
2021 Ram 1500
5 / 5
15 July 2021
I am pleased with the appearance of the cover. It enhances the appearance of the vehicle and enables me to place items in back of my truck without having to worry about theft. I like that the cover is sleek and adds a sporty look to my truck.
Artavan H.
2010 Ford F-150
5 / 5
1 July 2021
The product and service was and is excellent and I would recommend the product and service to everybody.
David G.
2019 GMC Canyon
5 / 5
28 June 2021
Looks great on my truck....
Jerod D.
2017 Ram 1500
5 / 5
27 June 2021
Love the cover, it was a little difficult to get the clamps positioned so that the rails mounted flush. Otherwise great product.
Bob M.
2020 Chevrolet Silverado 2500 HD
5 / 5
13 June 2021
Dealer did mention the item has a very good warranty coverage .
Rosario R.
2020 Chevrolet Silverado 1500
5 / 5
12 June 2021
Good Quality
Nick T.
2017 Ford F-150
5 / 5
8 June 2021
Only had it on for 12 hours but love it already.
John M.
5 / 5
4 June 2021
2021Dodge Ram 1500
I installed the UltraFlex in about 30 minutes and it looks amazing on my truck. It’s been on for about two months and not one drop of water has gotten on my BedRug. It arrived with one small clip broken and they apologized and sent two new ones quickly. Great product and great customer service. Don’t hesitate you’ll love it.
Walter M.
2018 Ford F-150
5 / 5
30 May 2021
Provides bed security and does not obstruct the driver's vision like a fully cap would.