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🪑 Upgrade your throne, stay cool, and sit like a boss.
The FOAMON Replacement Seat is a ready-to-install, durable black mesh cushion designed specifically for the Herman Miller Classic Aeron Size B Medium chair. Measuring 20.25" x 18" x 6", it features a reinforced metal frame for long-lasting support and breathable filament mesh for all-day comfort. Installation is hassle-free with included tools and instructions, making it the perfect upgrade to restore your chair’s comfort and style without replacing the entire unit.
| ASIN | B08KGWXM9N |
| Additional Features | Cushion Availability |
| Age Range Description | Adult |
| Arm Style | Armless |
| Assembly Instructions Description | General assembly instructions apply |
| Back Style | Mesh |
| Best Sellers Rank | #103,611 in Home ( See Top 100 in Home ) #629 in Home Office Desk Chairs |
| Brand | FOAMON |
| Brand Name | FOAMON |
| Chair Backrest Width | 20.25 Inches |
| Color | Graphite |
| Colour | Graphite |
| Cushion Style | Boxed Edge |
| Customer Reviews | 4.3 out of 5 stars 235 Reviews |
| Fill Material | Foam |
| Finish Types | Powder Coated |
| Form Factor | Plastic |
| Frame Material Type | Metal |
| Furniture Base Movement | Swivel |
| Furniture Finish | Black |
| Included Components | Cushion |
| Indoor Outdoor Usage | Indoor |
| Is Foldable | No |
| Item Depth | 18 inches |
| Item Dimensions | 45.7 x 51.4 x 15.2 centimeters |
| Item Dimensions D x W x H | 45.7D x 51.4W x 15.2H centimeters |
| Item Weight | 4.6 Pounds |
| Item weight | 4.6 Pounds |
| Leg Style | Pedestal |
| Manufacturer | FoamOn |
| Manufacturer Part Number | 123 |
| Material | Textile |
| Material Type | Textile |
| Maximum Weight Recommendation | 113.4 kg |
| Model Name | Aeron Size B |
| Model Number | B3D01 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Pattern | Solid |
| Product Care Instructions | Wipe Clean |
| Product dimensions | 45.7D x 51.4W x 15.2H centimeters |
| Reclining Position Count | 1 |
| Recommended Uses For Product | Office |
| Required Assembly | Yes |
| Room Type | Office |
| Seat Depth | 45.7 centimeters |
| Seat Material | Foam |
| Set Name | Herman Miller Aeron Size B Medium Seat Replacement |
| Shape | Rectangular Prism |
| Size | SIZE B MEDIUM |
| Style Name | Classic |
| Surface Recommendation | Hard Floor |
| Theme | Professional Classic |
| Tilting | No |
| UPC | 860003555958 860003555965 |
| Unit Count | 1 Count |
| Upholstery Fabric Type | Mesh |
S**D
Scamming by Amazon
No issues with product but I was scammed into a Prime membership. This kind of stuff is so dissappointing I won't buy through Amazon again.
M**T
Perfect seat replacement for my size B Aeron chair
I have an Aeron chair (size B) that I bought in the late 90s. A few years ago the seat started to tear. Not bad after 20+ years of almost daily use. I bought a replacement mesh which turned out to be a bad idea. It didn't quite fit and it wasn't made of the same stretch material as the original seat. Ok, lesson learned there. So I bought this and it was a perfect replacement. It's an entire new seat, not just the mesh. The mesh is the same stretchy material as the original. It looks identical to the original seat as far as I can tell. Replacing the seat was pretty easy. The instructions were good and it came with the tools needed. I think it took about 20 minutes and I was done. If you've made an investment in this chair, I think it's worth it to spend a little more getting this replacement seat so you have the official product. I'm writing this review 2.5 years later in Feb 2026 and the seat is still great. Zero problems, no regrets.
G**.
Muy bien
Excelente
B**I
Perfetto
Prodotto perfetto con Kit di montaggio, ci vuole un po' per arrivare, ma ne vale la pena.
R**S
Fits like a glove just like the old seat
This fits exactly like the old seat, everything lines up precisely and is every bit as comfortable as the original seat. Quality you can sit on!
Trustpilot
2 weeks ago
2 weeks ago