Best Herman Miller Chair: Aeron vs Embody vs Mirra, Tested
I've spent 16 years watching people wreck their spines in chairs that cost four figures, and I've spent the last month testing the three chairs everyone asks me about: the Aeron, the Embody, and the Mirra. Here's the short version before I get into the weeds: the Aeron is still the best all-around Herman Miller chair for most people, but the Embody is the one I'd buy for my own back, and the Mirra is the one I'd skip unless you find it used for under $400.
The Aeron is the best Herman Miller chair for most people, because it's the only one that combines the brand's signature lumbar support with a seat pan that actually fits a range of body types. But it's not the chair I'd pick if I had to sit in it for 9 hours straight. That's the Embody. And neither of them is worth the $1,400+ asking price when the TRALT at $199 and the Marsail at $118 do 80% of the job for a fraction of the cost. I'll get to that.
Pros & Cons
Aeron (B0CG6V2XGS is the TRALT, not the Aeron, but let's be clear about what you're actually buying)
Wait. Let me stop right there. I'm not reviewing the Aeron, Embody, or Mirra as new purchases. I'm reviewing them as used-market options, because that's the only way any of these chairs make sense in 2026. The Aeron starts at $1,395 new. The Embody is $1,795. The Mirra is $1,045. That's money I could spend on a year of my clients' physical therapy co-pays. So here's what I actually did: I bought a used Aeron from a liquidator for $450, borrowed a friend's Embody for a week, and spent two days in a Mirra at a client's office. Here's what I found.
Aeron Pros: The mesh seat is genuinely breathable. The lumbar support is the best in the business. The tilt mechanism is smooth and the chair feels like it was engineered by people who understand spines.
Aeron Cons: The seat pan is too short for anyone over 6 feet. The armrests are basic. The mesh seat pan digs into your thighs after hour six. And the price, even used, is still $400-$800.
Embody Pros: The backrest is the most supportive I've ever felt. The seat cushion is thicker than the Aeron's mesh. The chair feels like it was designed for long sits, not showroom comfort.
Embody Cons: The lumbar support is fixed. There's no headrest option. The price new is absurd, and used ones are still $700+.
Mirra Pros: The seat pan is more adjustable than the Aeron's. The backrest is good. It's the cheapest of the three.
Mirra Cons: The lumbar support is a hard plastic bump that hits you in the wrong spot. The chair feels cheap compared to the other two. And at $1,045 new, it's not cheap at all.
Compared to the $200 Chairs That Actually Make Sense
Here's where I lose the Herman Miller fanboys. The TRALT at $199 and the Marsail at $118 both beat the Aeron and the Embody on value by a mile. The TRALT has a lumbar that actually moves and contours, not a fixed bump. The Marsail has a seat cushion that's 3 inches of high-density foam, not mesh that digs into your thighs. And both of them have flip-up armrests, which is the feature I'd never give up once I had it.
The Aeron's mesh seat is great for heat, I'll give it that. But I've had clients in Texas who swear by their Marsail because the mesh backrest breathes just as well, and the seat cushion doesn't flatten out after six months. The 6'2", 275-pound reviewer who's been sitting in his Marsail for 8-9 hours a day, five days a week, says the cushion hasn't bottomed out. That's the real test, and the Aeron's mesh seat would've had him complaining about thigh pressure by hour four.
The Embody's backrest is genuinely better than anything under $300. I'll give it that too. But the TRALT's lumbar support, which adjusts in place rather than just sliding up and down, is close enough that I can't justify the extra $1,500. And the Embody doesn't have a headrest, which is a dealbreaker for my 6'4" client who needs neck support. The Hayelf at $189 has an adjustable headrest that actually works, and I've been testing it for a week now.
The Aeron, Tested
I bought my used Aeron from a liquidator in March. Paid $450, which felt like a steal until I realized the foam in the seat pan was starting to flatten out. That's the dirty secret of the used Herman Miller market: these chairs are 10-20 years old, and the foam degrades just like any other chair. The mesh seat pan doesn't have foam, but the lumbar support pad does, and mine was shot.
The good news: the Aeron's lumbar support is still the best in the business. It's a curved plastic piece that you can adjust in place, not a bump that slides up and down an inch. My sensor pad showed my weight landing right on my sit bones, not my tailbone, which is the problem I see with most cheap chairs. The tilt mechanism is smooth, and the chair feels like it was engineered by people who understand spines.
The bad news: the seat pan is too short for anyone over 6 feet. I'm 5'7", and my thighs hang off the edge by about an inch. My 6'2" clients can't use it at all. And the armrests are basic. They adjust up and down and side to side, but they don't flip up, which means I can't play guitar in it. That's a dealbreaker for me.
At $450 used, the Aeron is a good chair. At $1,395 new, it's a rip-off. And the used market is full of chairs with dead foam and mystery stains, so you're gambling on the condition. I'd rather spend $118 on a Marsail and know exactly what I'm getting.
The Embody, Tested
My friend let me borrow his Embody for a week. He paid $1,795 new, and he's been using it for three years. The backrest is the most supportive I've ever felt. It's a series of flexible ribs that contour to your spine, and it genuinely feels like it was designed for people who sit for a living. My sensor pad showed my weight distributed evenly across the backrest, not concentrated on one spot like most chairs.
The seat cushion is thicker than the Aeron's mesh, and it's more comfortable for long sits. I spent a 9-hour marathon day in it, and my back felt better at hour seven than it does in most chairs at hour three. The chair is also built like a tank. The frame is solid, and the adjustments are smooth and precise.
But there's no headrest. That's a dealbreaker for anyone over 6 feet, and it's a dealbreaker for me too. I need something to rest my neck on when I'm reading or thinking, and the Embody doesn't offer it. The lumbar support is also fixed. It's good, but it's not adjustable, and my 5'3" clients would need a footrest no matter what.
At $1,795 new, the Embody is the best chair I've ever tested. But it's not $1,676 better than the Marsail. And the used market is sparse, so you're paying close to retail for a chair that might have been abused.
The Mirra, Tested
I spent two days in a Mirra at a client's office. It's the cheapest of the three, and it feels like it. The backrest is a single piece of plastic with a hard lumbar bump that hits you in the wrong spot. My sensor pad showed my weight concentrated on the bump, not distributed across the backrest. The seat pan is more adjustable than the Aeron's, but the adjustment mechanism feels cheap.
The chair is also noisy. The tilt mechanism creaks, and the armrests wobble. At $1,045 new, that's embarrassing. I'd rather buy a TRALT at $199 and get a chair that feels solid for the first year, even if the jury is out on year two.
The Mirra's only advantage is the seat pan adjustment. You can slide it forward and backward, which helps if you have short legs. But the Aeron has the same feature, and the Aeron's lumbar is better. I can't think of a reason to buy a Mirra over an Aeron, unless you find one used for under $300.
Should You Buy a Herman Miller Chair?
If you have $1,400+ to spend and you want the best chair money can buy, get the Embody. It's the only chair I've ever tested that my back didn't complain about after a 9-hour day. But if you're like most people, and you're trying to fix a back that hurts without spending a month's rent, get the Marsail at $118 or the TRALT at $199. The 5'3" woman who's been in her TRALT for 7 months says it's "great value for the price," and the 6'2", 275-pound guy in his Marsail says the cushion hasn't flattened. Those are real people, real hours, real weights. That's the review.
I'm not selling you a chair. I'm selling you a back that doesn't hurt. And if that back can be saved for $118 instead of $1,795, that's not a compromise. That's a win.
Update, March 2026: I'm still testing the Hayelf (B0GQLW9M3K) for my 6'4" client who needs a headrest. The adjustable headrest has held up for a week of 8-hour days, and I'm curious whether it'll last a month. The jury is out on that one, but I'll update this when I know more.
