UnderCover Armor Flex vs Bak MX4

UnderCover Armorflex vs. BAKFlip MX4 Folding Tonneau Covers

If you’re in the market for a folding tonneau cover, you’ll probably come across these two contenders; UnderCover Armor Flex and Bak Industries MX4. How can you possibly choose between such great products? We’ve broken down the facts in this head-to-head match so that you can pick your winner. Let’s get started.

UnderCover Armor Flex

  • Crafted with heavy-duty panels protected with Line-X coating
  • Highly scratch and dent resistant and can support up to 400lbs
  • A flush fit and seamless hinge
  • A locked tailgate = a locked tonneau cover
  • No drilling necessary
  • Custom-Fit to your truck
  • 5-year limited warranty
  • Access to 100% of the bed when the tonneau cover is open

The UnderCover Armor Flex folding tonneau is a great tonneau cover option for all trucks. UnderCover makes the Armor Flex to fit specific makes and models of trucks so that you get a perfect fit. Tonneau covers are used for keeping cargo in and weather out, and the Armor Flex is no different. When the cover is closed completely, the mechanisms used to open the folding tonneau cover are inside the truck bed, so if the tailgate is locked, the cover is as well. This is a great option for people who are worried about someone breaking into your truck bed to steal something. Just about all trucks have locking tailgates, so purchasing the UnderCover Armor Flex is like getting a locking tonneau cover without having to worry about additional keys or codes! The Line-X coating keeps your new tonneau cover scratch and dent free for years to come so that it looks as new as the day you bought it! Keep your stuff safe and stop spending your hard-earned cash on tonneau covers that don’t last.

Undercover Armour Flex


Bak Industries MX4

  • Durable aluminum matte-finished panels
  • Close the cover when the tailgate is open or closed
  • Premium density foam core layered with aluminum
  • 3-year warranty
  • UV resistant coating to reduce fading
  • Panels can be opened from either side of the truck
  • No drill required
  • Made in the USA

The Bak Industries MX4 folding tonneau cover is one of the top-rated on the market. The MX4’s aluminum matte finish panels offer superior UV protection to avoid fading over time in the elements. Some tonneau covers quickly lose their like-new sheen, but not the MX4! Bak Industries MX4 is also scratch-resistant so you don’t need to worry about cargo ruining your new tonneau cover. When the MX4 is opened completely, you’ll have complete access to your pickup’s bed. The revolutionary integrated tailgate seal allows the cover to be opened whether the tailgate is opened or closed. The MX4 also locks whenever the tailgate is locked so you don’t need an extra set of keys. You can confidently park your pickup without having to worry about theft. With the MX4, your stuff will stay safe, and you can rest easy. Order your Bak Industries MX4 here: BAKflip MX4



As you can see, both the UnderCover Armor Flex and the Bak Industries MX4 have their highlights. Both are great options for pickup owners. You can close the tailgate with the cover closed on both You can see that both brands bring a lot to the table with these folding tonneau covers. A few of the biggest differences are… UnderCover 5 -Year Warranty, Bak Industries 3-Year Warranty Bak Industries has a UV resistant coating, UnderCover does not UnderCover uses Line-X coating, Bak Industries uses aluminum panels with foam core We hope we have helped you choose between these very popular products. Check our blog page often for more head-to-head battles. Our goal is to make choosing easier for our customers. Check out all of our folding tonneau covers and find your truck’s perfect match: Folding Tonneau Covers

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