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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

99 Customer Reviews


Reviewed by William M (SELBYVILLE, DE) Reviewed for a 2015 Toyota Tundra — Thursday at 4:29 PM

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The cover fits well - it took a bit more to install then the write-up stated but it wasn't that bad. The adjusting was a little tricky and when done all was fine. As for it being water tight it didn't hold up to the resent "Nor'easter" we had with rain driven by 60 mph winds. It must have leaked a small amount because the small carpet I put in to test for water was damp.

Great cover

Reviewed by Ryan A (LEXINGTON, SC) Reviewed for a 2015 Toyota Tundra — Oct 02, 2015 5:34 AM

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Fits well and was easy to install. Instructions were clear, and fit is very good. Has kept bed dry so far. Clip on top of cover was damaged in shipment, and Undercover sent replacement quickly.


Reviewed by Jerry H (Moselle, MS) Reviewed for a 2012 Nissan Titan — Oct 01, 2015 6:41 AM

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So far the cover is very nice; the seals on the sides & ends can be made of a little thicker rubber.

Undercover Flex, excellent

Reviewed by Marty T (COCHRAN, GA) Reviewed for a 2015 Ford F-150 — Sep 30, 2015 4:34 PM

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Just installed the Undercover Flex on my new 2015 F-150 Platinum and it looks great. Truck has not been in a down pour yet, but stayed dry through three days of light rain. Easy to fold up and really simple to install...accomplished in 30 minutes by myself. AutoAnything was a pleasure to do business with.

Good cover, Poor attention to detail

Reviewed by William K (Rosenberg, TX) Reviewed for a 2010 Dodge Ram — Sep 20, 2015 9:09 AM

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Cover was very easy to install. 30 min. Works well. The only water issue is around the tail gate. Very small amount. Shipping was fast and product was protected well during shipping. Issues, seal around edge cut poorly works but looks bad. Sticky substance on top of one of the panels will not come off. Strut bracket screw holes not lined up on the rails. Looks like someone did not care what they shipped out.

UnderCover Flex Tonneau Cover

  • $821.00
  • Free Shipping
  • Ships Between 10/13 - 10/15
  • What Do You Drive?

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