Comparison
Aeron vs Mirra 2
Herman Miller vs Herman Miller — full spec comparison
Bottom line
Aeron is the premium sized-mesh flagship; Mirra 2 is the lighter, often cheaper HM alternative with Butterfly or TriFlex backs and strong refurbished availability.
Comparing 2 chairs across key specs.
Brand
Herman Miller
Model
Aeron
Era produced
1994–Present (Remastered 2016)
Discontinued
No
MSRP (new)
$2,150
Avg refurbished
$850
Avg used
$450
Height range
142–201 cm
Weight capacity
159 kg
Seat width
51 cm
Seat depth
43 cm
Backrest height
58 cm
Seat material
Full Mesh
Armrests
4D Articulating
Forward tilt
Yes
Lumbar
Asymmetrical
Headrest
Aftermarket Only
Cylinder
Top-activated pneumatic (height range varies by size/cylinder)
Caster stem
11mm × 22mm standard
Frame
Die-cast aluminum + glass-reinforced nylon
Tilt / lock
Harmonic 2 tilt; tilt limiter / forward seat-angle options
Arm adjustability
Fully adjustable (height, width, depth, pivot) on common configs
Brand
Herman Miller
Model
Mirra 2
Era produced
2013–Present
Discontinued
No
MSRP (new)
$1,695
Avg refurbished
$550
Avg used
$320
Height range
152–188 cm
Weight capacity
159 kg
Seat width
50 cm
Seat depth
46 cm
Backrest height
56 cm
Seat material
Elastomer
Armrests
4D Articulating
Forward tilt
Yes
Lumbar
Height-Adjustable Pad
Headrest
None
Cylinder
Top-activated pneumatic (low / standard / extended)
Caster stem
11mm × 22mm standard
Frame
Polymer + AireWeave seat suspension
Tilt / lock
Harmonic 2; tilt limiter / seat-angle options
Arm adjustability
Fully adjustable 4D arms on common configs
| Spec | Herman MillerAeron | Herman MillerMirra 2 |
|---|---|---|
| Brand | Herman Miller | Herman Miller |
| Model | Aeron | Mirra 2 |
| Era produced | 1994–Present (Remastered 2016) | 2013–Present |
| Discontinued | No | No |
| MSRP (new) | $2,150 | $1,695 |
| Avg refurbished | $850 | $550 |
| Avg used | $450 | $320 |
| Height range | 142–201 cm | 152–188 cm |
| Weight capacity | 159 kg | 159 kg |
| Seat width | 51 cm | 50 cm |
| Seat depth | 43 cm | 46 cm |
| Backrest height | 58 cm | 56 cm |
| Seat material | Full Mesh | Elastomer |
| Armrests | 4D Articulating | 4D Articulating |
| Forward tilt | Yes | Yes |
| Lumbar | Asymmetrical | Height-Adjustable Pad |
| Headrest | Aftermarket Only | None |
| Cylinder | Top-activated pneumatic (height range varies by size/cylinder) | Top-activated pneumatic (low / standard / extended) |
| Caster stem | 11mm × 22mm standard | 11mm × 22mm standard |
| Frame | Die-cast aluminum + glass-reinforced nylon | Polymer + AireWeave seat suspension |
| Tilt / lock | Harmonic 2 tilt; tilt limiter / forward seat-angle options | Harmonic 2; tilt limiter / seat-angle options |
| Arm adjustability | Fully adjustable (height, width, depth, pivot) on common configs | Fully adjustable 4D arms on common configs |
| Buy |
FAQ
- Is Mirra 2 almost as good as an Aeron?
- Mirra 2 is a strong HM task chair and often the better value refurbished. Aeron still wins if you need discrete A/B/C sizing, the deeper parts ecosystem, or the flagship mesh fit story.
- Which is cheaper refurbished, Aeron or Mirra 2?
- Mirra 2 usually lands lower than a Remastered Aeron in comparable condition. Classic Aerons can close the gap on price.
- Does Mirra 2 come in sizes like Aeron?
- No. Mirra 2 is a single-size platform with seat-depth and height adjustment; Aeron uses separate A/B/C frames.