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The UnderCover Flex Hard Tri Foldis a hard folding tonneau cover that gives you the ultimate control of your truck bed, offering three secure riding positions. The cover is easy to remove, requires no drill for installation, and is mounted flush with your trucks bed rails making it the most water-tight hard folding cover on the market. Each panel is made of high quality FRP composite material; which is lighter, stronger, and more dent resistant than aluminum. Each Flex Hard Tri Foldhas a bed rail mounting system equipped with rubber seals and drain tubes that carry water away from, and out of the bed, keeping your gear dry and secure. Best yet Flex Hard Tri Foldis backed by a 3 year warranty slowly making it Americas favorite hard folding tonneau cover.
IMPORTANT NOTE: If Vehicle has Headache Rack installed, an Inside Rail Mount Tonneau Cover can be used with no additional parts. If a Top Mount Tonneau Cover is desired, an Installation Kit may be needed. To find Installation Kit, look up by Supplier for Headache Rack.
Q: Is the Flex waterproof?
A: The Flex is weather resistant. The Flex utilizes rail channels and drain tubes to move water away from the bed. Ultimately, no folding cover is completely waterproof as there are tailgate gaps and other areas that may allow some intrusion.
Q: What is the install time on the Flex?
A: The Flex can usually be installed in about 45 minutes
Q: Can I drive with the cover in the upright position?
A: Yes. The Flex utilizes strut mounts to stabilize the cover while driving.
Q: Will the cover work with a 5th wheel hitch?
A: Yes. There are two available cover positions while pulling a 5th wheel. Upright and ¾ bed access.
Q: How fast can I drive with the cover in the upright position?
A: We do not assign a speed rating to the Flex in the upright position, but it is well equipped to handle legal interstate speeds.
Q: What is the warranty on the Flex?
A: 3 Years on workmanship and materials. 1 year on hardware.
Q: Can I see out the back window with my Flex fully upright?
A: No. The cover in the upright position will block the view out the back window.
Q: How easy is it to remove my Flex cover?
A: Simply unscrew the two elevator bolts and lift!
Q: How can I get the side seals to lay flat on my new Flex?
A: After a day or two, direct sunlight will be absorbed and help the seals lay flat.
Q: Do I need to drill into my truck when installing the Flex?
A: No. The Flex utilizes clamps and a no-drill installation.
Q: Does my Flex work with a standard toolbox?
A: No. Flex cannot be installed with a toolbox.
Q: How secure is my Flex cover?
A: The Flex secures your cargo with the help of a tailgate lock. The only access point is the pull cord underneath to open the cover. If your tailgate is locked, your cover is locked.
Q: Where is the Flex made?
A: All UnderCover products are proudly made in the USA.
Q: Is the Flex compatible with my bedliner?
A: Yes. The Flex will work with BedRug, spray-ins and any under the rail bedliner. Flex is also compatible with many aftermarket bed caps.
If you have any questions or need assistance, please reach out to us at 800.292.4173 or support@mytruckpoint.ca.
When it comes to your truck, compromise is not an option. At MyTruckPoint, we deliver the quality, speed, and trust that professionals across Canada depend on every day.
A decade of proven reliability serving truck owners, fleets, and businesses nationwide. We’ve built our reputation by delivering consistent quality and dependable service.
Over one hundred thousand successful orders — every one backed by accuracy, speed, and customer satisfaction you can count on.
No knock-offs. No compromises. Only genuine parts from top-tier brands, ensuring performance, safety, and long-term value.
Our parts are selected to handle real-world demands — tough jobs, long hauls, and harsh conditions. Because your truck deserves the best.
Premium quality doesn’t have to mean premium prices. We deliver exceptional value so you get more for every dollar spent.
Downtime costs money. That’s why we process orders quickly and deliver efficiently — so you can get back on the road faster.
Not sure what you need? Our experienced team is here to guide you with honest advice and the right solutions — every time.
We stand behind every order. Your satisfaction isn’t optional — it’s our priority.
MyTruckPoint — Trusted by Thousands. Built for the Road.
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We offer price Match plus 10% off the price different
Serving Canadian Since 2015