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When it comes to gymnastics, politics and truck bed cargo control-flexibility is key. And, there's no better way to touch your cargo-covering toes than with the Undercover Flex Tonneau Cover. Undercover's first folding tonneau features a sleek, low-profile design that folds away to reveal your entire truck bed.

Featuring 3 folding panels, the Flex cover folds completely forward and back to deliver full bed access and maximum security. The low-profile design sits flush with your truck's bedrails for a super sleek and slippery style that improves MPG, too. And, thanks to the simple clamp system, the Undercover Flex is easy to install and remove with no drilling required.

Crafted from a fiberglass reinforced polymer with a subtle textured finish, the Flex shoulders up to 400 lbs. And, it'll never crack, warp, fade, rust or corrode. Connected by seamless leak-proof rubber seals and featuring an integrated drain tube, the entire assembly keeps your bed clean, dry and secure. Best yet, Undercover backs your Flex Tonneau Cover with a 3-year warranty.


UnderCover Flex Tonneau Cover Customer Reviews

Average Rating

147 Customer Reviews

Flex is Awesome

Reviewed by Shelisa H (MACCLENNY, FL) Reviewed for a 2013 Ford F-150 — Jul 15, 2016 7:41 AM

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The install was fairly easy, and took me about 30-45 minutes. I purchased a toolbox first, but took it back when I found the Flex cover. Much more functional for in-town and trips. The TB would have just been for looks. Been in several strong storms (NE Florida) since install, and the bed is dry as can be. Also, installed LED lights on the rail system for a completely cool and functional set-up.

undercover flex

Reviewed by Frank L (SEBASTIAN, FL) Reviewed for a 2016 Ford F-150 — Jul 13, 2016 7:05 PM

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I had a bak flip on my last truck and didn't like the when fully opened it layed against the back of the truck.The flex stays straight up and never touches the truck. also like the mounting better.


Reviewed by Farris H (Decatur, GA) Reviewed for a 2013 Dodge Ram — Jul 12, 2016 11:06 AM

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It keeps things dry when rain truck rides so much better on freeway.

Undercover flex

Reviewed by Justin C (SPRING, TX) Reviewed for a 2014 Ford F-150 — Jul 07, 2016 4:26 AM

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Easy to install. Great product.

Good Quality

Reviewed by Charles C (Murrieta, CA) Reviewed for a 2014 Toyota Corolla — Jul 05, 2016 9:01 AM

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This is a really good quality and well designed product for the money. The clamps work nicely with the toyota factory rails. The only concern is that they need a better recommendation on the installation of the drains. It does leak a little in the front due to the foam stick on seal. I am going to try and find a better seal, otherwise I would recommend this.

UnderCover Flex Tonneau Cover

  • $729.00 - $829.00
  • Free Shipping
  • Ships Between 7/28 - 8/01
  • What Do You Drive?

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