Undercover Armor Flex vs Ultra Flex Tonneau Cover

Undercover Armor Flex
Undercover Armor Flex

In the world of hard folding covers, UnderCover is one of the oldest, as they were founded in 1999. But they entered the truck bed cover market in 2001, while their first product was UnderCover Classic. Till then, they are still producing different types of tonneau covers.

In today’s article, we will discuss UnderCover ArmorFlex and UnderCover UltraFlex, two very popular hard folding cover models manufactured by the same American brand UnderCover.

Undercover Armor Flex

If you own a car, you know how important it is to keep it protected from the elements. A car cover is a great way to do this, and the Undercover Armor Flex car cover is one of the best on the market. This tough, durable car cover is made from a special fabric that repels water and protects your car from UV rays, dirt, and other debris. It’s also designed to resist mold and mildew, so your car will stay looking like new for years to come. Best of all, the Undercover Armor Flex car cover is easy to use and comes with a storage bag for easy transport. So if you’re looking for a high-quality car cover that will keep your car looking great, the Undercover Armor Flex is a perfect choice.

What are the Undercover Armor Flex’s best features?

– Tough, durable fabric
– Repels water
– Protects from UV rays, dirt, and debris
– Resists mold and mildew
– Easy to use
– Comes with a storage bag

Ultra Flex Tonneau

An Ultra Flex Tonneau Cover is a cover that is made to fit over the bed of a truck. This type of cover can be very helpful in protecting your cargo from the elements and keeping it secure. There are many different styles and designs of Ultra Flex Tonneau Covers available on the market, so you can find one that best suits your needs. If you are looking for a cover that will provide maximum protection for your cargo, then you may want to consider investing in an Ultra Flex Tonneau Cover.

This type of truck bed cover is made to be very flexible, allowing it to conform to the shape of your truck bed. This makes it ideal for trucks with irregularly shaped beds, or for those who frequently haul large or oddly-shaped items. Ultra Flex Tonneau Covers are also typically made from durable, and weather-resistant materials.

Compare Table

There are mainly two types of hard covering systems available in the market. One of them is a retractable hard cover and the other is a hard folding cover. Both of the models we discussed here are hard folding covers which are associated with a bit simpler design concept than the other one.

No-drill installation

No-drill installation

EPDM Seals Provide Maximum Water Resistance

Comes With Carpeted Under-Paneling for Added Cargo Protection Inside the Bed

Line-X Matte Black Finish for the Ultimate Protection

Ultra Low-Profile Design with Stylish Matte Black Finish

Can Holds Upto 300 Lbs of Evenly Distributed Weight on Top

It Is Able to Carry Upto 400 Lbs of Weight Over the Panel When It Close

Dual Action Tailgate Seal to Protect the Cargo

Dual Action Tailgate Seal Secures the Inside of the Cargo Bed

Comes With 5 Years of Warranty

Carries a 5-Year Warranty

Without Using Any Power Tools One Can Install the Entire Device Within an Hour or Less

It Is Easy to Mount on Your Truck Bed Less Than an Hour

Offer a Low Profile Design and a Standard Look When Being Installed on Trucks

Comes With Some Extra Lower Design Ensures Better Look and Aerodynamics

Operates From either Side With Slam Latches

Dual Action Tailgate Seal for Easy Operation

Why Compare

Comparing two products is an excellent way to find out the right fit before you are planning to buy any certain model. Though both of the models we cover in this article are designed and manufactured by the same brand, they still contain some differences.

We focus on the Material, Design and outlook, Functionality, Installation process, and Warranty policy of these two mentioned models. Without taking a long time for an introduction, let us jump into the main topic.

Material Used

When we talk about the hard folding covering system, the only material it uses is aluminum. The mounting rails and covering panels are made of top-class, super-strong aluminum in UnderCover ArmorFlex. These heavy-duty panels are coated with LINE-X automotive grade coating. It allows advanced protection from dents and scuffs, no matter how rough the weather condition is.

On the other hand, UltraFlex’s hard folding cover is also equipped with an industrial-grade aluminum panel and guide rail. For the best UV protection and a smooth dent-free surface stylish powder-coated matte finish is used. But instead of LINE-X coating, UltraFlex uses carpeted panels.

Design Concept

Though both of the models are made of strong aluminum panels, they seem very similar in design and outlook. Both ensure the ultra-low profile design, black matte finish with the automatic latching panels looks stunning in every position- whether it is fully open, partially open, or closed.

Though these two mentioned models contain a very small difference in finishing, it is quite hard to identify this in the first look. Only an integrated luminous rail light system makes the UltraFlex quite identical to the other model of the same brand.


Both ArmorFlex and UltraFlex are equipped with a dual-action tailgate seal ensuring the ultimate security while on the go. The flush mounting technology looks stunning and provides far better weather protection; no matter whether it is raining or snowing. Moreover, the covering panels can hold a certain amount of weight while it is fully closed over your truck bed.

Here ArmorFlex can hold 300 lbs of evenly distributed weight, while UltraFlex is much stronger and able to carry up to 400 lbs of weight.

Installation Process

Without using any professional power tool, even a layman can install the device on any truck bed by following the guided instruction. It only takes 30 minutes to an hour to finish the full installation process.

Warranty Policy

Both models here are backed by five years of hassle-free guarantee. Any defect found in craftsmanship and material within the warranty period will be replaced at the company’s cost. As this company has been in the market for a long time, they already get famous for their very humble customer reviews and warranty management.

I Hope, this article will help you to find the puzzle block of your decision-making process. Without minimal inequality, most of the features remain shared in both of the models of the popular brand UnderCover. But if you pay close attention, you will indeed find some reason to choose any specific model over the other one.

As our experts suggest, one should go for UltraFlex when it provides some extra features like rail light and some better protection. But this one was a bit more expensive than the previous one. If you are not short on the pocket and looking for a better life span and better look, obviously UnderCover UltraFlex would be the product to consider.


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