Home  /Exterior Accessories  /Tonneau Covers  /Folding  /Hard Folding  /UnderCover Ultra Flex Tonneau Cover

UnderCover Ultra Flex Tonneau Cover

Made By RealTruck
$1,199.99 - $1,249.99
Made by Realtruck

UnderCover is a RealTruck brand. When you buy UnderCover from RealTruck, you are buying direct from the manufacturer.

  • description
  • install
  • warranty
  • reviews
  • Q&A


Ultra Finished Under Panel
A refined, yet Ultra tough carpet-like finish gives the Ultra Flex a look and feel far beyond OE Standards.
Ultra Easy Close Tailgate Seal
Shut your tailgate with ease without ever having to lift that last panel.
Full Bed Access
Built in prop rods secure the cover allowing your truck to be driven with the cover fully open.
Slam Latches
Ultra Flex panels automatically latch to the covers mountings rails, making it simple to operate from either side of your truck.
Redesigned Rails
The Ultra Flex is an easy clamp-on application that can be installed and removed easily with the newly designed L-Rail's.
Weather Resistant
Rubber seals and a tight, flush fit prevent elements from entering the bed, while high quality drain tubes channel water out that may have entered.
  • Constructed from Aluminum Panels
  • Matte Black Powdercoat Finish
  • EPDM Seals Provide Maximum Water Resistance
  • Holds up to 400 Lbs of Evenly Distributed Weight
  • Installation Requires No Drilling
  • Easy Clamp-On Rails
  • Operates from Either Side with Slam Latches
  • Features Dual Action Tailgate Seal
  • Five-Year Warranty
Our Guarantee
Best Price Guaranteed
Truck Experts a Call Away
Fastest Shipping
30 Day Return Guarantee
Lifetime Install Support
Spec Sheet
FinishMatte Black
Warranty5 Years
California Residents: Prop 65 Warning


Installation is easy enough to install in your driveway. Most applications can be installed with simple hand tools. Please call us if you have any questions.

Install Video UnderCover Ultra Flex Tonneau Cover 2017 Ford Raptor


UnderCover, Inc. warrants the structure of your Ultra Flex Cover to be structurally free from defects in material and workmanship for (5) five years from the retail date of purchase. The hinges, seals, and hardware are warranted to be free from defects in material and workmanship for (5) five years from the retail date of purchase. This warranty applies only to the original purchaser and is nontransferable. Your original sales receipt will serve as proof of purchase for this warranty. Before credit can be issued on a warranty claim, proof of defect may be required. This can be determined at the time of the claim.

Not covered under this warranty is failure due to neglect, improper installation including any modifications to installation hardware, alterations, addition of equipment, abuse, accident, weather-related damage, exposure to chemicals that are not labeled “safe for rubber” and normal wear from lack of maintenance.

Always read the ingredients of any product you are using to clean your Flex Cover. Make sure that you use only products that are safe for use with rubber. Many chemicals contain material that will permanently discolor or damage your Flex Cover hinges and seals. This is not considered a manufacturer defect.

Incidental or consequential damage or loss of contents due to use, neglect, lack of maintenance, misuse or abuse of the Flex Cover is the sole responsibility of the truck owner and operator. Paint damage to your truck is not covered under this warranty. When operating your truck always keep the Flex Cover in either the fully closed and latched position, or one of the two approved open positions. The first approved open position would be the first, second, and third panel stacked onto the forth panel and the buckles must be secured together. The second approved open position would be all four panels standing up vertically behind the cab. In this position both prop rods must be attached and the buckles secured. Do not operate the truck at excessive speeds with the Flex Cover in either open position.

In the event that your Flex Cover is found to be defective under the terms of this warranty, it is at the discretion of UnderCover, Inc. to repair or replace the defective part. All repairs must be made under the direction of UnderCover Inc. UnderCover Inc. is not responsible for any transportation costs associated with the warranted claim.

The panels of your Flex Cover require only periodic cleaning with mild car wash soap. Avoid use of all abrasive type cleaners as they may dull the finish. Some chemicals and fluids such as insect repellents, oils, solvents, and lubricants could potentially damage the rubber hinges and seals and void the warranty.