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Undercover Flex Tonneau Cover

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  • Simplify your truck-owning life in more ways than one with an Undercover Flex Tonneau Cover
  • FRP (fiberglass-reinforced polymer) cover panel construction stronger, lighter than aluminum
  • Folds out for total truck bed coverage and folds up for cargo access
  • Low-profile design lends sleek looks, better aerodynamics
  • Prop rods hold cover in place when open, conveniently stow away in rubber-coated clips when not in use
  • Custom-designed for a perfect fit on your truck
  • Remove entire cover quickly, with no tools necessary
  • Easy installation via clamps, with no drilling required
  • Plastic straps and buckles secure panels against theft 
  • Water-resistant: rubber seal, drain tubes channel 99% of rain and water away from truck bed
  • Does not use stake pockets; works with drop-in bed liners, bed extenders, and factory cargo management systems
  • 3-Year Warranty

Truck bed covers are among the most popular and useful accessories for pickups on the market today. Get a versatile, durable, and super strong one for your truck by going with the Undercover Flex Tonneau Cover.

Without destroying your budget, this tonneau gives you everything you need without taking anything off the table. Each of the Undercover Flex Tonneau Cover's three sections can be folded up to give you total bed access, but when down it offers complete coverage for your gear and cargo. A low-profile design offers sleek looks and improved aerodynamics, while a rubber side seal and drain tubes offer 99% water-resistance to keep whatever's in your truck bed safe from harm.

Installation is a breeze, utilitzing clamps instead of drilling and leaving your stake pockets free for use with other accessories. If you need to take The Undercover Flex Tonneau Cover out for any reason, you can do so quickly; when attached and in use, plastic straps and buckles ensure total security. Made of fiberglass-reinforced polymer that is both lighter and stronger than aluminum, it's a perfect solution to your cargo-protection and anti-theft concerns.

You've always wanted one, so make sure your new truck bed cover is as verastile and easy-to-use as possible. The Undercover Flex Tonneau Cover is both of these and then some. Backed by a 3-Year Warranty.

Undercover Flex Tonneau Cover Customer Reviews

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4.8 of 5

Average Install Time: 30-60 minutes

Showing 10 of 28 reviews. See All Reviews.

who drives a Chevy Silverado
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This is my second Undercover Flex. I loved the one on my old truck (2016) and the new cover is even better (2020). Easy to install and high quality.

Install Time: 30-60 minutes

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This is a very high quality product and really adds to the appearance of my 2019 F150. It was easy to install (even though) I am 73 years old. Hardest part was climbing in the back of the truck.

Install Time: 30-60 minutes

who drives a Toyota Tacoma
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The cover looks great,that's why I purchased it. The fit could be better.the front and the rear of the top sticks up/isn't level. I believe it would help to have a little more adjustment in the height of the rails.where it meets the tail gate doesn't seem to be a water-tight seal.

Install Time: 1-2 hours

who drives a Toyota Tundra
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This is a great cover. Very nice style and appearance. It installed very easy. I'm not sure it is completely rain tight but so far after a few rain storms the bed stayed pretty dry. Now I have extra lockup storage.

Install Time: 30-60 minutes

who drives a Honda Ridgeline
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This is a nice tonneau cover but I had several issues! Installed on a 2017 Honda Ridgeline and the instructions were too vague and the installation was trial by error. It took my son and I over 2 hours to install! The instructions said we had to remove 4 tie downs (which I still wanted to use) to install the side rails but we were able to still use the tie downs by turning then upside down. Some of the time spent was going to a hardware store to get a drill bit to remove the bolts on the tie downs (not the tonneau cover manufacturers fault!) Once we figured out what we were doing things went a little more smoothly! When we were finished and closed each section they locked into place until the last one which one side locked and the other side I had to push down to lock in place. The rubber seal along the top had some waves in it and didn’t lay flat but that may go away over time when it warms up ( installed in February!) It still leaks but very little and that may be because of the seal problem and I don’t think any tonneau cover will be completely water proof! The drainage tubes will not fit into the drain holes on the Ridgeline they are to small! I may have to make 2 drain holes bigger (don’t really want to alter my bed liner!) It would have been nice if it was a flat black finish to match my bed liner but that’s not a deal breaker! It does look nice and I like that I can close my tailgate without opening the tonneau cover first!

Install Time: 2+ Hours

who drives a Chevy Silverado
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Great product!

Install Time: 30-60 minutes

who drives a Chevy Silverado
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Looks great Just what I wanted. Easy to install. Fit was perfect. Would recommend to anyone.

Install Time: 1-2 hours

who drives a Ford F250
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After searching through several brands and styles or tonneau cover, the Undercover Flex was my too choice. Based on the design and features it was the best cover out there. The price was great considering it was fiberglass and the quality of Undercover tonneau makes. Installation was simple and loved the way it went together. Great innovation and features that others don't have. I would buy this cover again in a heart beat. No leaks, dry bed, and great looks, what else could you ask for. Great job Undercover!! Love it!!!

Install Time: 30-60 minutes

who drives a Nissan Titan
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The Tonneau Cover came in as shipped. The problem is that it probably sat in a warehouse for a long time (folded) and one of the seals does not sit completely on the bed rail. Also, the drainage tube is cheap too short. I had to run to Lowe's to buy standard AC tubing in order to make the drainage work.

Install Time: 1-2 hours

who drives a GMC Sierra
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This is an excellent bed cover. It is easy to install, having said that the instructions could use a clarification overhaul, they are not very clear. It looks good on the truck.

Install Time: 30-60 minutes

Showing 10 of 28 reviews. See All Reviews.