---
product_id: 339798212
title: "Replacement Seat for Herman Miller Classic Aeron Size B Medium (Black Mesh)"
brand: "foamon"
price: "2469.59 DT"
currency: TND
in_stock: true
reviews_count: 5
category: "Foamon"
url: https://www.desertcart.tn/products/339798212-replacement-seat-for-herman-miller-classic-aeron-size-b-medium
store_origin: TN
region: Tunisia
---

# Fits Size B Aeron perfectly Durable black mesh fabric Tool-included, easy install Replacement Seat for Herman Miller Classic Aeron Size B Medium (Black Mesh)

**Brand:** foamon
**Price:** 2469.59 DT
**Availability:** ✅ In Stock

## Summary

> 🪑 Upgrade your throne, stay cool, and sit like a boss.

## Quick Answers

- **What is this?** Replacement Seat for Herman Miller Classic Aeron Size B Medium (Black Mesh) by foamon
- **How much does it cost?** 2469.59 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/339798212-replacement-seat-for-herman-miller-classic-aeron-size-b-medium)

## Best For

- foamon enthusiasts

## Why This Product

- Trusted foamon brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Heavy-Duty Frame:** Reinforced metal frame built to resist cracking or damage, supporting up to 250 lbs with confidence.
- • **Seamless Style Match:** Graphite black mesh perfectly matches your Aeron chair’s original aesthetic—no one will know it’s new.
- • **Effortless DIY Upgrade:** Comes with tools and clear instructions—no handyman needed to refresh your chair in minutes.
- • **Breathable Mesh Comfort:** Premium black filament mesh ensures superior ventilation, keeping you cool during marathon work sessions.
- • **Precision Fit for Size B:** Tailored 20.25"W x 18"D x 6"H seat replacement designed exclusively for Herman Miller Classic Aeron Medium chairs.

## Overview

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.

## Description

Is your chair's seat starting to wear out or disintegrate? Our chair is with us through exhausting work hours, long nights, and study sessions. So when we start to see its cushion wear out, it can be hard to let it go, especially if it has provided us with reliable comfort and support through hours of sitting in front of our computers. Luckily, you can easily restore your chair and make it feel brand new again! All you need is a compatible cushion that will line up on the frame of your office chair while providing the same level of comfort and support. Renew your old office chair with the FOAMON Herman Miller Aeron Chair Seat Replacement! Replace old and tattered mesh seats with a brand new one that fits your chair perfectly. If you have a Herman Miller Classic Aeron Office Chair in Medium Size B that needs some fixing, this seat replacement is for you. Measuring 20.25 Inch Width x 18 Inch Depth x 6 Inch Height, This complete seat is specially designed for SIZE B Medium Herman Miller CLASSIC Aeron chairs! Covered in the black mesh fabric, this durable seat replacement matches the original cover of your chair so you can maintain its sleek and professional design. No one would even know that you replaced your seat! Since this replacement comes ready to use, you won't have a hard time installing it on your chair. Our package comes with an easy-to-follow instruction manual so you can remove your worn-out seat and install this new one in just a few moments. Still not convinced? Here are more reasons you should get this seat replacement: - Comes in a sleek graphite color - Perfect for home and office use - No additional screws needed Upgrade your seats with great ease. Add the FOAMON Herman Miller Aeron Chair Seat Replacement to your cart TODAY!

Review: Great replacement - The seat was a good replacement and fit exactly like the old one that broke on my chair. It came with the seat and the tools to replace it. Easy to install and it feels like a new chair, now I can keep using my chair.
Review: Muy bien - Excelente

## Features

- Fits Your Herman Miller Chair - Measuring 20.25 inch Width x 18 inch Depth x 6 inch Height, our Herman Miller Aeron ************************************************************* parts are designed to fit any Classic Aeron chair size B. ************************************************************* your old chair seat with great ease!
- Tough & Durable - Our Aeron Seat ************************************************************* parts feature a reinforced, heavy-duty frame to ensure that it won't break, crack, or get damaged easily. Sit on your new cushion without worries!
- Sit Comfortably - This seat is made of filament which offers fantastic ventilation, so you can stay cool all day. Our seat's black mesh fabric also matches the mesh of Herman Miller Aeron chairs.
- Fuss-Free Installation - No need to call a handyman to put these chair seat ************************************************************* in place. This new Aeron chair seat comes with a manual that'll help you remove and ************************************************************* your old seat.
- Ready To Use - With this new ************************************************************* Seat, there's no need to assemble mesh, and foam required. The seat itself comes ready to install so you'll only need a few minutes to revamp your Herman Miller Classic Aeron desk chair.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| 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 | #157,202 in Home ( See Top 100 in Home ) #915 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 | 4.4 out of 5 stars 227 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 | 250 Pounds |
| Model Name | Aeron Size B |
| Model Number | B3D01 |
| 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 |

## Product Details

- **Brand:** FOAMON
- **Colour:** Graphite
- **Material:** Textile
- **Product dimensions:** 45.7D x 51.4W x 15.2H centimeters
- **Size:** SIZE B MEDIUM

## Images

![Replacement Seat for Herman Miller Classic Aeron Size B Medium (Black Mesh) - Image 1](https://m.media-amazon.com/images/I/81ltV-VOMfL.jpg)

## Questions & Answers

**Q: Made a mistake; bought a c by mistake. due illness i missed the july 28th cutoff. might you grand me an exception as a fellow small business owner?**
A: Hello. All our products are being fulfilled by Amazon. Regarding Return and Refund also being handled by Amazon. We don't have the ability to modify or amend Amazon's Terms and Policies on our end. Thank you for your understanding.

**Q: Hi will this fit my FO# 574285 101?**
A: Somewhere on these chairs the size is imprinted. Mine is a sixe B although I cannot tell you if that is a match to your FO# above. There is a tutorial on UTube that will show you how to confirm size and replace the insert, which is tricky.

**Q: Will the size B seat fit a size C chair if I wanted to down size?**
A: No. Many assume Size B will fit into Size C. 
But unfortunately The Size B never fit size C and vice versa.

**Q: Hello! cab you confimr that this will fit my chair? i have a size b and found these 2 codes under the chair: ae223awb & hmb-ae1-0005949. thank yo**
A: Yes this code is Size B

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great replacement
*by A***R on 29 June 2026*

The seat was a good replacement and fit exactly like the old one that broke on my chair. It came with the seat and the tools to replace it. Easy to install and it feels like a new chair, now I can keep using my chair.

### ⭐⭐⭐⭐⭐ Muy bien
*by G***. on 9 January 2026*

Excelente

### ⭐⭐⭐⭐⭐ Perfetto
*by B***I on 13 October 2025*

Prodotto perfetto con Kit di montaggio, ci vuole un po' per arrivare, ma ne vale la pena.

## Frequently Bought Together

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-22*