---
product_id: 557378412
title: "Replacement Classic Aeron Office Chair Seat Foam, Fits Medium Size B and Small Size A"
brand: "herman miller"
price: "฿4165"
currency: THB
in_stock: true
reviews_count: 5
category: "Herman Miller"
url: https://www.desertcart.co.th/products/557378412-replacement-classic-aeron-office-chair-seat-foam-fits-medium-size
store_origin: TH
region: Thailand
---

# Ergonomic foam support Fits Medium B & Small A sizes Easy adhesive installation Replacement Classic Aeron Office Chair Seat Foam, Fits Medium Size B and Small Size A

**Brand:** herman miller
**Price:** ฿4165
**Availability:** ✅ In Stock

## Summary

> 🪑 Upgrade your seat, upgrade your day — don’t settle for less comfort!

## Quick Answers

- **What is this?** Replacement Classic Aeron Office Chair Seat Foam, Fits Medium Size B and Small Size A by herman miller
- **How much does it cost?** ฿4165 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/557378412-replacement-classic-aeron-office-chair-seat-foam-fits-medium-size)

## Best For

- herman miller enthusiasts

## Why This Product

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

## Key Features

- • **Durable Carbon Color:** Sleek carbon foam that blends seamlessly with your chair’s original aesthetic.
- • **Revive Your Workspace:** Replace worn-out foam and reclaim the legendary Aeron seating experience for peak productivity.
- • **Effortless Installation:** Includes strong 3M double-sided tape for a hassle-free, secure fit—no tools required.
- • **Ergonomic Comfort Upgrade:** Precision foam designed to restore your Aeron chair’s iconic support and comfort.
- • **Tailored Fit for Classic Aeron:** Specifically crafted for Medium B and Small A sizes to maintain perfect chair ergonomics.

## Overview

This replacement seat foam is engineered exclusively for Herman Miller Classic Aeron chairs in Medium B and Small A sizes. Made from high-quality ergonomic foam in carbon color, it restores optimal knee and seat support. Installation is simple with included 3M adhesive tape, ensuring a snug fit that revitalizes your chair’s comfort and durability.

## Description

Replacement seat foam for carbon colored Classic Aeron chair, fits sizes Small A and medium B only. This replacement seat foam pad is attached underneath the front edge of the chair seat, where your knees would naturally fall. It can easily be adhered with strong double sided tape.

Review: buena pieza para sustituir sin complicaciones en su instalación
Review: Feels good and comes with 3M adhesive. Instead of pulling out the old piece under the sitting mesh, I remove the mesh instead and cleaned it as well. Putting the mesh back was a little challenging. Need to stretch it a bit for the mesh to stay taut. Good thing the design is very well thought out and there is a groove to fit the mesh back in.

## Features

- Replacement part for Herman Miller Aeron seat foam
- For Classic Aeron chairs that are size medium B and small A only
- Made of foam to help with comfortable seat support
- Carbon colored
- Fits the Classic Aeron chair to ensure ergonomic body support

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07VXB9XSF |
| Batteries required | No |
| Best Sellers Rank | #142,846 in Home ( See Top 100 in Home ) #816 in Home Office Desk Chairs |
| Care instructions | Hand Wash Only |
| Customer Reviews | 4.6 4.6 out of 5 stars (118) |
| Date First Available | 3 September 2023 |
| Fill material | Foam |
| Form factor | Ergonomic |
| Is mould resistant | en_AE |
| Number of pieces | 1 |
| Product Dimensions | 35.56 x 7.62 x 3.81 cm; 109 g |

## Product Details

- **Brand:** Herman Miller
- **Colour:** Black
- **Fill material:** Foam
- **Size:** 1 Count (Pack of 1)
- **Special features:** Ergonomic

## Images

![Replacement Classic Aeron Office Chair Seat Foam, Fits Medium Size B and Small Size A - Image 1](https://m.media-amazon.com/images/I/511fIq9Ry5L.jpg)

## Questions & Answers

**Q: Is this OEM or 3rd party supplier?**
A: I’m not sure but it fits perfectly.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***Y on 30 April 2025*

buena pieza para sustituir sin complicaciones en su instalación

### ⭐⭐⭐⭐⭐ Review
*by K***K on 21 January 2025*

Feels good and comes with 3M adhesive. Instead of pulling out the old piece under the sitting mesh, I remove the mesh instead and cleaned it as well. Putting the mesh back was a little challenging. Need to stretch it a bit for the mesh to stay taut. Good thing the design is very well thought out and there is a groove to fit the mesh back in.

### ⭐⭐⭐⭐⭐ Review
*by J***E on 7 December 2025*

The original seat pad was ‘toast’. The replacement pad breaths life into my Aeron chair for many more years of service!

## Frequently Bought Together

- Herman Miller Replacement Classic Aeron Office Chair Seat Foam, Fits Medium Size B and Small Size A
- Lumbar Support Pad Replacement for Herman Miller Classic Aeron Chair - Size B: Medium,Black
- Herman Miller 2.5-Inch Aeron Office Chair Replacement Caster Set for Standard Carpet (Set of 5)

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**Shop now:** [https://www.desertcart.co.th/products/557378412-replacement-classic-aeron-office-chair-seat-foam-fits-medium-size](https://www.desertcart.co.th/products/557378412-replacement-classic-aeron-office-chair-seat-foam-fits-medium-size)

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-04-23*