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UnderCover Ultra Flex Tonneau Cover

133 Reviews
$1,139.00 - $1,249.00 each
List Price
$989.00 - $1,059.00 each
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Features:
  • Click to View Undercover Folding Tonneau Cover Comparison Guide (PDF)
  • Fend off every threat to payload security by installing an UnderCover Ultra Flex Tonneau Cover
  • Removable folding design allows for full truck bed access whenever you require it
  • Aluminum reinforced panels with aluminum side rails are extremely resistant to dents and scratches
  • Panel undersides feature mildew resistent carpet - visible when you fold it back to the bulkhead
  • The UnderCover Ultra Flex effectively stops bandits – cannot be opened when tailgate is locked
  • Ultra Flex installs easily – all you really need is a 9/16” hand-wrench
  • Comes in an UV-proof, matte-black finish for lasting, low-pro looks
  • Your UnderCover Ultra Flex Tonneau Cover is made in the USA and backed by a 5-year warranty
  • The Undercover Ultra Flex features a matte finish on its exterior panels. If you are looking for a high gloss finish instead, try the Undercover Flex
Description:

With so many different truck sizes, shapes and capabilities to choose from, it should come as no surprise that tonneau covers are just as variable. What one model may possess in security, it may compromise when it comes to truck bed accessibility – and vice versa. One tonneau that won’t disappoint is the highly innovative, highly versatile UnderCover Ultra Flex Tonneau Cover.

As stylish as they are sturdy, UnderCover Ultra Flex Tonneaus are constructed from lightweight aluminum panels that fold all the way back to the bulkhead for complete truck bed access when you need it, and feature an underlying layer of mildew resistant carpet. Aluminum side rails clamp onto the rails of your truck bed, delivering a low-pro appearance – all in an attractive, UV-protected matte-black finish.

Installation is a cinch – all you need is an hour or so, a 9/16” wrench and a little elbow grease. Made with pride in Rogersville, MO, your UnderCover Ultra Flex Tonneau Cover is supported by a 5-year warranty.

Frequently Asked Questions

How secure is the Undercover Ultra Flex Tonneau Cover?
The cover panels are made from aluminum which is stout and heavy duty. It would require a lot of force and dedication to puncture the surface. Out of sight, out of mind is key. Covering your gear severly limits someone's interest in what may or may not be in the truck bed. As long as your tailgate is locked, the cover is relatively secure.

Is the Undercover Ultra Flex waterproof?
Ultimately no truck bed cover is totally waterproof, unless it's a fully overlapping style. Most hard folding covers do a pretty good job keeping major water out, but their joint sections can allow minor water ingress under extreme weather conditions.

Where is the Ultra Flex bed cover made?
Ultra Flex tonneau covers are made in the USA.

Can I put cargo on top of the Ultra Flex truck bed cover?
Yes, putting cargo on top of the tonneau is possible. Absolute maximum capacity is 400 lbs of evenly distributed weight on the Ultra Flex.

How do I lock the Ultra Flex if my truck doesn't have a tailgate lock?
Pop & Lock Tailgate Locks are available for most trucks as an aftermarket solution that can be retrofitted if your truck was not originally equipped with a tailgate lock. Sold separately, available at AutoAnything.

Notes:
Average Rating
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Ease of Installation
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Quality
133 Customer Reviews
5 Star
101 (76%)
4 Star
26 (20%)
3 Star
2 (2%)
2 Star
1 (1%)
1 Star
3 (2%)

Fit

The white tabs that lock the cover down do not fir under the rail in all places. It still seems to have a secure fit
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Posted By joseph l (CHESTER, WV) / April 5, 2020
Yes
No

works great

This is the third UnderCover tonneau cover I have purchased. What I like about this one is that the side rails actually bolt and screw on to the truck. There are no brackets to hold it down. No checking for loose brackets now to make sure the side rails are tight. Very secure!
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Posted By William C. H (Carson City, NV) / March 26, 2020
2020 Jeep Gladiator
Yes
No

Good looking, excellent quality, works well, highly recommend!

The Undercover Ultra Flex is well thought out, and very well engineered. One issue I had was that SOME 2020 Ford F250's will not allow the mounting rails to level up with the top of the bed. Tech Support believes that a certain assembly plant has different jigs for bed construction. Spent 2 hours trying to get them to mount level with the bed top. After 4 phone calls to Tech Support(very helpful) I had to fabricate spacers for the rear clamp location to make the rails mount level. No leaks.
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Posted By James L (MASON, TX) / March 18, 2020
2020 Ford F-250
Yes
No

Gary: looks nice, functional, easy to install, good price!

To be fair, I have only had the cover a couple weeks but have used it several times. I wanted something other than a bulky canopy, something sleek that could keep items in the bed of the truck secured. Use the latest YouTube instructions before installing. Some say it takes 30 minutes to install. But if this your first time, by the time you unpack the box, get the tools out, install the cover and clean up it took 90 minutes. Autoanything beat all competitors prices. It was delivered next day!
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Posted By Gary M (Camp Sherman, OR) / March 9, 2020
2019 Ford F-250
Yes
No

Ultra Flex Tonneau

I really love the look and fit of the Ultra Flex. Provides security for truck bed contents. Good product made with quality materials. Been through several heavy downpours and the car wash without any leakage. Added a Bed Rug bed mat which matches the underside of the cover. Very happy with the purchase.
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Posted By Gary C (COVINGTON , LA) / March 9, 2020
2019 Ford F-150
Yes
No

Great Product

5 stars overall. Cover shipped quickly and once I got around to installing it I noticed the drain nipple on one of the rails was damaged in shipping. I called customer service and it was the greatest experience I have ever had in correcting a product complaint. I sent pictures and when days I had two new rails. They shipped two new rails so there wouldn't been any confusion in replacing the correct rail. Install was easy while watching an install video. I would highly recommend the product
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Posted By Scott B (Dacula, GA) / February 1, 2020
2018 Chevy Silverado
Yes
No

Ultra Flex Review

This is my second Ultra Flex Cover. After carefully reviewing other makes and models, I determined that this best suited my needs. My needs were simply cargo protection.
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Posted By Max G (Raleigh, NC) / January 31, 2020
2020 GMC Sierra
Yes
No

Looks nice, left rail arrived with damage

Overall the cover is nice. The only issue is that the left rail drain was completely broken off (I cannot attach a drain hose) and the strut mount was broken as well on the the left rail. I would have expected better from a $900+ cover. Still waiting to hear back from undercover as well.
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Posted By Christopher D (del rio , TX ) / January 18, 2020
2017 Ford F-150
Yes
No

Outstanding

Bought one for my Ford and for my best friends Toyota. Both installed in less than 20 minutes. Our 4 year old grandson was able to open and fold back with ease. Great product!
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Posted By Paul W (Crosby, TX) / July 14, 2019
Yes
No

UnderCover Ultra Flex Tonneau Cover

nice product, easy install,
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Posted By Par C (Bel Air, MD) / July 5, 2019
2019 Dodge Ram
Yes
No

Ultra fit

Super easy to install and looks super cool, bed light that came with it was rather cheap and didn't on the rail correctly
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Posted By Scott H (PORTLAND, OR) / July 3, 2019
2018 Toyota Tacoma
Yes
No

Exactly what I was looking for!

This cover is perfect. Easy to install and works great. Looks great, keeps my items secure, and keeps the water out.
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Posted By Mark B (GLEN ALLEN, VA) / July 3, 2019
2019 Ford F-150
Yes
No

Easy install and user friendly

I bought it for my new truck, it looks good, easy install.I was looking for secure, waterproof and full truck bed usability bed covers; it meets all of the requirements.
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Posted By Sajo t (GARLAND, TX) / June 26, 2019
2018 Ford F-150
Yes
No

Nice cover

Really like the look and the weight of the cover. My only 2 challenges are the instructions aren't very thorough. Thankfully I was able to watch an install video from another retailer to understand the installation. Other challenge is the pull cords have too much slack in them making it hard to pull the cord and open the cover with one hand like I could easily do with my last cover from a different manufacture.
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Posted By David H (Shreveport, LA) / June 21, 2019
2017 Ford F-150
Yes
No

Unhappy Customer

I bougth the UnderCover UltraFlex Tonneau Cover, when it arrived there were parts missing and some of them broken. After I contacted Auto Anything and explained to the Customer Service Department they ordered the replacement parts from the manufacturer and it took about another two weeks to arrive, less warranty.When I began installing the UnderCover Ultra Flex Tonneau Cover it didn't want o fit because it was wider than the truck box. I had to do some adjustment in order to make it fit. No good
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Posted By Juan B (Franksville, WI) / June 4, 2019
2016 Dodge Ram
Yes
No

Best tonneau cover yet

The ultra flex is like having a large sealed trunk that will protect tour stuff. Flips open to allow use of entire bed to haul larger items I recommend it!!!
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Posted By Robert B (Wildwood , FL ) / June 1, 2019
2019 Ford F-150
Yes
No

2019 Tundra CrewMax TRD Pro with UltraFlex tonneau

I ordered this cover for my new Tundra and it looks great~! Drove thru a rainstorm on the way to vacation and our gear in the bed was protected and dry. Install was a total DIY job (saved $$$ from local dealer installation). Tri-fold feature is really convenient. Great product~!
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Posted By Andrew B (Grovetown, GA) / May 22, 2019
2019 Toyota Tundra
Yes
No

Undercover ultra flex tonneau cover for 2019 Silverado

This is my 2nd undercover tonneau cover . Both have kept dust as well as water out. Also happy undercover came out with a cover that fits the new bed of the 2019 Silverado so fast .
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Posted By Rick C (Divide , CO ) / May 1, 2019
2019 Chevy Silverado
Yes
No

Easy installation! Nice cover

Easiest installation and fast shipping. Great quality cover, best price. There was some leakage and had to adjust cover to fix. Didn't like to drill holes in truck bed but not a big problem. Truck bed light included is a plus but no tool bag. Overall great cover.
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Posted By Tu B (BROOKLYN PARK, MN) / April 30, 2019
2019 Toyota Tacoma
Yes
No

Best folding tonneau

I originally purchased the bakflip and was extremely disappointed with it, I had an undercover flex on my 2016 Ram and loved it, I thought I would try the bakflip on my 2019 Ram and was amazed at the difference in quality compared to the undercover flex which by far is the superior cover, great price, excellent customer service and very quick delivery.
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Posted By Ted B (Gloucester, MA) / April 18, 2019
2019 Dodge Ram
Yes
No

Ultra Flex

Easy to install. Looks great. Good fit.
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Posted By Barry C (MIDDLETOWN, OH) / April 11, 2019
2017 Chevy Silverado
Yes
No

Installation of UnderCover Ultra Flex Tonneau Cover

I love my new UnderCover Ultra Flex Tonneau Cover! Great looking and a good value for the price. Intstallation looked easy on the video but after about 10 hours (and not the 1:20 minutes as advertized) of frustarting effort. I fianllt took it to a Professional (plus another $120.00 of Labor) to get it installed properly. Did I mention that I still Love it? I do!
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Posted By James A (Las Cruces, NM) / April 8, 2019
2019 Ford Ranger
Yes
No

Great cover

Easy install
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Posted By Richard B (Norwalk, CT) / March 27, 2019
Yes
No

nice cover but does not come with bag

The cover is good could be about 1/2" to 1" longer for a better fit and the free rail bag should be removed from advertising since they no longer supply it.
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Posted By Steve W (ELIZABETHTOWN, PA) / March 19, 2019
2015 Chevy Silverado
Yes
No

Web information was misleading

The information on the website was misleading. It showed dual bed lights and a saddlebag storage accessory. The light was changed to a single and the storage bag is no longer part of the cover. The cover was easy to install. My only complaint is that the seal at the front of the bed is only self adhesive weather stripping. My truck has a factory spray in bed liner so the weather strippng came loose in less than a day, allowing water to leak in. The company needs to come up with a better option.
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Posted By Michael C (Liverpool, NY) / March 6, 2019
2019 GMC Canyon
Yes
No
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