Herman Miller Mirra 2 vs Aeron: Which One Is Better?

The Herman Miller brand has become synonymous with ergonomic comfort and functionality. In this article, FittingChairs will compare 2 types of chairs from this brand. They are Mirra 2 vs Aeron.


Mirra 2 vs Aeron – The story behind

There is always a story behind an invention of each ergonomic chair, from the idea to the designing process.

Herman Miller Mirra 2

Ten years after the Mirra ergonomic office chairs were introduced, the designers of Studio 7.5 believed it was time to evaluate and rethink their original design. They noticed that work is evolving.

People move, and the more they’re in motion, the more they need support that moves with them.

The designers found the idea of a highly individualized personal chair is still valid. While Studio 7.5 retained the athletic attitude and intuitive adjustments of the original, they advanced the material and form of this idea in virtually every aspect of Mirra 2.

The designers of Studio 7.5 test the validity of a design and its component parts using full-scale models.

Building on its legacy as the first office chair developed from the ground up with environmental responsibility in mind, Mirra 2 moves responsible design forward by advancing the use and reuse of materials.

In redesigning Mirra, the mantra at Studio 7.5 was “every molecule counts”, which means a close examination of every element is essential to using the least material possible while also advancing performance.

Herman Miller Aeron

The Aeron Chair is the most well-known joint production of designers Bill Stumpf and Don Chadwick, who put in years of combined research into the way people sit.

This chair is an ergonomic revolution when it first hit the market in 1994 and quickly became a status symbol in offices around the world. Then, in 2016, Herman Miller decided it was time to remaster the chair to keep up with 21st century living and the latest science.

Aeron wasn’t invented out of thin air. Chadwick and Stumpf worked on a number of predecessors that assayed their ideas of elemental chair design.


Mirra 2 vs Aeron – What the same?

Both Herman Miller Aeron vs Mirra 2 chairs are made with ergonomics in mind. It shows in the adjustable lumbar support and armrests that are built into both chairs.

These two are both made of a combination of elastomeric polymers and polyesters with different percentages. This combination makes a balance between durability, lightness, and comfort possible.

Mirra 2 and Aeron have adjustable reclining mechanisms that move smoothly, not in a staggered manner.

Both chairs are also well-ventilated. Therefore, you won’t have to worry about your back or your seat getting sweaty.

That’s all about the similarity. Let’s move on to the differences of Mirra 2 vs Aeron!


Mirra 2 vs Aeron – What’s the difference?

Herman Miller Mirra 2 and Herman Miller Aeron have many differences in design and adjustment.


Now let’s see what are the difference between Mirra 2 vs Aeron in design.

Design details

Mirra 2 vs Aeron
Herman Miller Mirra 2 vs Aeron: Which One Is Better?


Seat depth
Seat Hight
Max user weight


As for material, the Mirra 2 comprises recycled materials aluminum taking a fair share of the mass fraction of the chair. The mechanism is made of steel and high-quality plastic. 

The Aeron uses recycled material to create one of the best pieces of furniture, including steel, glass-filled polymers, and nylon. Another key ingredient in the making of this chair is aluminum. All the mechanisms and adjustable systems are made using high-quality steel and plastic.


Mirra 2 vs Aeron

The Mirra 2 is lean and light that gives support for the people who work in a constant state of motion.

  • Back support: The Mirra 2 has two different back support options, the Burtterfly Suspension and TriFlex Polymer.
  • Armrests: 4D adjustable armrests, giving you full ergonomic control.
  • Forward tilt seat angle: allows you to tilt the chair forward.
  • Adjustable seat depth.
Herman Miller Mirra 2 vs Aeron: Which One Is Better?

The Aeron is very similar to the Mirra 2 chair. However, there are some of the notable features that distinguish between these two, which are the customization.

The Aeron has a little bit more options which allow you to have the best chair that forms to your body to choose from. There are different Aeron chair sizes to account as well.

  • The armrest: The Aeron has fewer armrest positions than Mirrra 2.
  • Seat height: The seat height varies for the Aeron due to the different seat sizes.
  • Back support: The Aeron has three different back support: Basic Back, Adjustable Lumbar Support, and Adjustable PostureFit SL.

What’s customer say

Here are some of the customer views on Amazon about these two types of chair. Keep reading to see what they say about Mirra 2 and Aeron by Herman Miller.

Herman Miller Mirra 2 reviews

Positive reviews

Rick Sanchez: “Wish I bought one sooner.”

Bought the modern fabric-covered model with full adjustability. Got lucky with a “used” model. I sure couldn’t tell it was used, still had new plastic smell. Thanks Amazon warehouse!

So I never sat in a mesh style chair before, and I must lament my ignorance, it is the only style of office chair anyone should consider. Especially after years of dealing with cushioned chairs going flat.

All adjustments are easy and intuitive, the lumbar support is very well designed and spread out comfortably. The rocking feature is very nice, and the tension adjustment is the strongest I ever experienced.

For reference I am 190lbs and 5’11”. Can I stay in one position comfortably for hours in this chair? No, but it has so many ways of quickly adjusting that makes enduring long hours at the desk pain free and pleasant. And I can tell this chair will be durable for the next decade easily.

Oh, the arm rest pads are glorious. Herman Miller makes the best arm rests ever.

Show more +

Thomas D.: “Awesome upgrade for home office!”

The best part is the chair is it’s super easy to assemble & super comfortable. It arrives in 3 component parts & no tools required. Took about 3 minutes to assemble & 3 minutes to adjust the fit to my body. Herman Miller chairs are basically indestructible & will last. I’ve had the same Herman Miller chair at the corporate office for 20 years & decided to upgrade the home office. Definitely worth the money.

Show more +

Negative reviews

Mattevia: “Not worth the price.”

Back plastic mesh broke in two spots about 2 inches in on both sides (4 broken areas) in lumber area after 4 years. The broken pieces poke the back when you sit. The comfort was alright before this.

Show more +

Linda: “This is the most uncomfortable chair I have ever sat in.”

I do not know why this chair is getting such good reviews because this is the worst chair I’ve ever sat in. Our company, a major bank, purchased new chairs for everyone in the building and did not bother to tell us we were getting new chairs. The old ones were very comfortable. One day they were just gone and replaced with these awful Herman Miller chairs. They even took the backrest that I had attached to my original chair away with it. However that is irrelevant to this review. The reasons why this chair is so uncomfortable is because of multiple problems. There is no padding for the seating area. When you sit on this chair the seat is not flat, you sort of sink in a little bit (kinda reminds me of those awful foldable chairs with no support you would buy for camping) which makes it very painful for my hips. I brought in a pillow from home to put on the chair and it seems to help a TINY bit but not enough to make my hips not hurt. I cannot adjust the seat depth to go from front to back, I can only make the very front edge roll (or more aptly put – curl) downwards towards the floor, this does not increase comfort as it digs into my calves. The only chairs my company did not replace are in the conference rooms so I had to steal the chair from that location and swap it with the new Herman Miller one at my desk. It is still not as comfortable as my old chair but it’s better than this Herman Miller chair. ANY chair would be more comfortable that this Herman Miller chair. No one I know in my company likes these chairs. I do not recommend this chair for anyone, especially somebody who has just had surgery or has orthopedic problems. I can’t believe my company spent major $$$ for these non ergonomic chairs – what a waste of money.

Show more +

Herman Miller Aeron reviews

Positive reviews

Kevin: “Awesome Chair! No con’s at all.”

The Aeron Chair is worth every penny. Like most people in office environments, work study, play WOW have issues with finding the right chair. Having a chair that is actually sized more for your height and weight makes a huge difference by itself as opposed to one size fits all, I’m 5’11 /155 lbs, ordered the Size B, building a chair on the Herman Miller site to assure proper fit for me. Convinced its directly related to health at the end of the day, so I won’t say I wish it was cheaper because it probably wouldn’t be the quality that it is and I would be wanting to swap it out right away. Plus it looks a lot better in person, noticed I don’t lean forward, or twist and turn as much as I normally do.

The chair came in a box fully assembled as others mentioned, I did swap out the casters, not that the original ones were bad; honestly didn’t use them but to move 5 feet and back, the carpet with roller blade type casters seem to move across 1/4″ carpet a little easier. I have never been 100% happy with any chair without finding flaws just after a few hours, being in IT and previous sales, have sat in my fair share of chairs as most of us have. I’m certain I will continue to buy this chair from now on for home use.

Show more +

Justin: “The only thing that fixed my lower back pain.”

Switching to working from home has caused me to not only be sitting more often, but to be sitting in my subpar desk chair. This has caused me to get lower back pain since it has no lumbar support and is not very ergonomic.

In my search for a solution to the problem I have tried 3 other chairs: Steelcase Leap v2, Herman Miller Embody, Autonomous Ergochair 2. All of these chairs were OK but had major flaws in comfort for me, especially considering the first 2 are very expensive chairs. The Leap and Embody both reclined too far back which caused upper back pain. The ergochair 2 was definitely kind of cheap in construction and was only ergonomic fully upright.

For me being kind of short and liking to sit upright the Aeron is the only chair that offers everything. And it is the only thing that has helped my lower back pain since lockdown.

Show more +

Negative reviews

Aaron Reed: “The chair will feel ok for a month.”

My work bought this chair for us when we transitioned buildings. It felt so much better on my tail bone due to the mesh fabric that I bought this one (the one I am reviewing) for my home office brand new. I alternate between this chair and standing at my desk periodically. What I found is it is causing mid-to-lower back issues for me. My back aaaaaaaches now due to the chair not having lower back support. The mesh fabric allows your lower back to roll to the back of the chair. The controls that should provide support to your lower back are very poorly built and actually put a little pressure above the lower back. It’s in the wrong spot. Don’t buy this chair. It’s way too expensive for this much back pain. Find a chair with lower lumbar support if you have a desk job.

Show more +

Micheal Mathews: “Not even close to built for tall people – Caused Sciatica issue.”

When you pay $1300 for a chair built for big and tall people you really expect it to offer support for someone your size.
I am tall but not big, that seems to be a curse when looking for a chair.
At 6’5″ I weigh around 220 so while I don’t need 300lbs of support or an ultra wide seat, I do need a tall back and an adjustable lumbar.

Well while the tension on this lumbar adjusts, the height does not. It presses into my sacrum and upper glutes, and offers no support for my lower back. Consequently after enough long days I started to develop severe sciatica issues.

At first I didn’t want to blame the chair (having spent as much as i did) but after eliminating my sciatica issue the first time I went back to my desk and working for 8 hours again, stood up and, almost fell over from the pain.
Another 3 days of stretching and heat/cold ensued.
This time I ended up rolling up a pillow and pressing it down to where I needed support and after a full day of work, no issues.

What’s most frustrating is that this seems to be the trend with most “Big & Tall” chairs.
They should actually just read “Big”
This chair is not designed for a tall person. I would say if you are over 6 foot (maybe 6’2″), keep looking.

The overall build quality really isn’t that impressive compared to my last chair and while some of the adjustments are nice; This is NOT a $1300 chair.

I’ve sat in much nicer chairs with a plethora of adjustment options that cost slightly less.
An adjustable lumbar height, seat depth slider and a higher back would’ve made this a chair for a “Tall” person.
As it is now, it is built for a “Large” person but will only give “Tall” people a lot of aches and pains.

Show more +

Mirra 2 vs Aeron – Pros and cons


Mirra 2 vs Aeron final thought

Both Mirra 2 vs Aeron are great chairs for the office. It depends on your demand to choose the most suitable one for yourself. If you’re looking for something softer, we suggest the Mirra 2, while the Aeron has a more firm.

See more:

Whether you choose the Mirra 2 or the Aeron, we think you’ll be a happy customer and become a long-term partner with the Herman Miller family.

Enable registration in settings - general