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WarBird’s SkyFlex IIIA Armor System: The New Standard In Soft Body Armor?
WarBird’s SkyFlex IIIA Armor System: The New Standard In Soft Body Armor?
WarBird’s SkyFlex IIIA Armor System: The New Standard In Soft Body Armor?
Ryan Domke Last modified Jan 6th 2025
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WarBird’s SkyFlex IIIA Armor SystemWarBird’s SkyFlex IIIA Armor SystemCheck Price

Body armor can be categorized at a high level between hard and soft armor. When you need maximum protection, you turn to hard body armor. When you need additional protection but maximum concealability, you turn to soft body armor.

Soft body armor is a staple for professionals such as police officers, private security personnel, and other first responders, but civilians can also benefit from it.

Close-up image of WarBird’s premium packaging for the SkyFlex IIIA Armor System
WarBird’s packaging is hard to beat.

Over the last few years, we have seen mass looting and bare store shelves. During these times, you don’t want to stand out more than you need to.

These scenarios are prime examples of when soft body armor can be helpful even for private citizens. Stepping out to your local grocery store with a full plate carrier kit will protect you, but can also make you a target.

WarBird offers a complete line of soft body armor, and today, we’ll be looking at its top-of-the-line option, the SkyFlex Level IIIA Armor System. We’d like to give a huge shoutout to the kind team at WarBird for sending us this care package to check out!

My Time With The Armor

Since I don’t have a job that requires me to wear body armor, I had to get creative to test how comfortable the SkyFlex Armor System is when worn for extended periods or during strenuous activities.

Action shot showcasing the flexibility and comfort of the WarBird SkyFlex IIIA during everyday activities
Never know what might jump out of the screen!

Over the last few months, I’ve done all of the following while wearing my SkyFlex setup:

  1. Mini road trip (4.5 hours)
  2. Worked full days at the computer (7+ hours)
  3. Ran distances between 0.5 and 3 miles
  4. Went to the shooting range several times
  5. Went shopping with it under clothes to test its concealability

After a bit of playing with the eight-point adjustable hook-and-loop closure system, I could do all of the above with very little movement of the vest. It’s almost impossible not to have any up-and-down play when running, but it was comfortable enough to continue without issues.

Being 6’6”, I was skeptical about fitment, but the provided fit guide on WarBird’s website helped me find pretty darn close to the perfect size. I may have sized down one level on the width, but I’d much rather have more coverage than less. Overall though, it fits close to custom.

Detailed image of the WarBird SkyFlex IIIA Armor System showing the durable materials and craftsmanship
Quality gear is critical.

Of course, I had to hit the range with it, and I had no issues shooting pistols or rifles with it on. I haven’t had the opportunity to shoot the vest yet, but I have a feeling that will be coming soon, so I’ll update the article if/when that happens!

Demonstration of the SkyFlex IIIA Armor concealed effortlessly under a hoodie
A simple hoodie is enough to conceal the SkyFlex kit.

Wearing it in public felt strange since I do not usually wear any body armor out shopping, but with a hoodie or a light jacket, it virtually disappears. I can’t guarantee that nobody noticed, but I can guarantee that I didn’t notice anyone noticing…read that three times fast!

Where To Buy The SkyFlex Level IIA Armor System

Key Features

When it comes to body armor, the most critical component is how well it stops a threat. Not only do you need to understand what threats it can stop, you need to be confident that it will do so reliably. That’s where NIJ certification comes in and delivers peace of mind.

The SkyFlex armor panels are NIJ 0101.06 certified, which, in a nutshell, means they are rated to stop up to .357 SIG or .44 Mag. Many body armor manufacturers will be tricky and advertise their armor is NIJ “tested,” but it’s extremely important to verify that the armor is certified and not simply tested.  

Detailed view of the SkyFlex IIIA specifications and NIJ certification on display
You can never have too much information regarding the details of your armor.  

The protection component is covered thanks to the NIJ certification, and the comfort component is definitely covered thanks to WarBird. The SkyFlex is the thinnest and lightest option available from WarBird, coming in at only 0.21” thick and 0.86 pounds per square foot! These impressive specs equate to superior concealability and flexibility, both of which are extremely important.

WarBird’s sizing calculator tool for selecting the perfect SkyFlex IIIA Armor fit
Handy sizing calculator can be found on WarBird’s website.

To ensure your comfort and maneuverability are maximized, the vest and panels are available in several configurations with varying widths and lengths. If your vest doesn’t fit right and is uncomfortable, it drastically reduces your likelihood of wearing it. The whole point of having armor is to wear it!

The Ghost Hawk Carrier keeps the panels extremely secure thanks to the internal hook and loop suspension and a bottom zipper to ensure they can never fall out. Additionally, there is a trauma plate pocket in case you’d like to add extra protection.

Close-up of the secure hook-and-loop system and zipper feature of the SkyFlex IIIA Armor
A hook-and-loop system plus a zipper keeps your panels from moving around as you do.

Between the padded shoulders, bottom wear casing, and moisture-wicking liner, there isn’t much left to be desired from the carrier. A very thin and minimalistic admin pouch may have been nice, but you can use the trauma plate pocket in a pinch if you’d like.

Overall, the package provides the protection you need with the comfortability you want.  

Armor Specifications

Threat LevelLevel IIIA
NIJ Certified?Yes (NIJ 0101.06)
MaterialTwaron / Dyneema
Thickness0.21 Inches
Weight0.86 psf
Warranty5 Years

Pros & Cons

I’m happy to report that we found no cons compared to competitors. However, we did feel it was important to stress the cons of soft body armor in general, though. Note: these cons are to be expected from almost any soft armor. 

Pros
  • NIJ Certified – a must when it comes to body armor
  • Lightweight, comfortable, and easy to maneuver with
  • Conceals easily under a sweater or jacket
  • Wide variety of sizes to fit any body shape
  • Ballistic panels are made in the USA
  • 5”x8” pocket for trauma plates
  • Packaging is top-notch
Cons
  • Lacks protection against rifle calibers
  • Limited knife-resistance
  • Recommended to replace every 5 years

Accessories

Side Kick Trauma Plate

Side Kick Trauma Plate

Trauma plates are an affordable addition to your body armor setup, providing extra energy absorption and softening potential blows. WarBird’s Side Kick Trauma Plates are lightweight, waterproof, and can upgrade your Level II vest to Level IIIA in that particular location.

Image of WarBird’s Side Kick Trauma Plate showcasing its lightweight and waterproof design
It never hurts to have additional protection. Source

Alternatives

Hoss Level IIIA Body Armor System

Hoss Level IIIA Body Armor System

If the SkyFlex is out of your budget and you don’t mind a bit more bulk to your setup, consider checking out the Hoss Body Armor System. It still delivers the same NIJ-certified protection but is not as thin or lightweight as the SkyFlex package.

Side-by-side comparison of the Hoss Level IIIA and SkyFlex IIIA Armor Systems, highlighting their thickness differences
Thicker but still concealable. Source

Additionally, it’s made from Woven Aramid Fiber as opposed to the Woven Twaron Aramid Fiber & Dyneema combination that the SkyFlex is. If you’re OK with those differences, you can save a solid chunk of change by going with the Hoss setup.

Final Thoughts

At the end of the day, it’s always better to be over-protected than under. It’s also best to remain as inconspicuous as possible. WarBird has done a great job providing you with the tools to do both.

For times when your fully loaded plate carrier with spare mags, medical, and side plates is simply too cumbersome or attention-driving, the soft body armor offerings from WarBird are there to step in.

Front and back view of the WarBird SkyFlex IIIA Armor worn under casual clothing
WarBird has your back…and front.

I’ll be sure to update this article if/when I wind up shooting one of these panels, but assuming for this article that they do stop what they are rated for, the SkyFlex Level IIIA Armor System seems to have the potential to be one of the new go-to models for professionals. I guess only time will tell, but I’m optimistic.

As always, stay safe, train hard, and have fun!

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