---
product_id: 3558017
title: "Herman Miller Aeron PostureFit Support Kit Add-On - Graphite - Size B"
brand: "herman miller"
price: "₩289867"
currency: KRW
in_stock: true
reviews_count: 6
category: "Herman Miller"
url: https://www.desertcart.kr/products/3558017-herman-miller-aeron-posturefit-support-kit-add-on-graphite-size
store_origin: KR
region: South Korea
---

# Minutes to install Patented PostureFit tech 3-year warranty Herman Miller Aeron PostureFit Support Kit Add-On - Graphite - Size B

**Brand:** herman miller
**Price:** ₩289867
**Availability:** ✅ In Stock

## Summary

> 🪑 Upgrade your throne, upgrade your posture!

## Quick Answers

- **What is this?** Herman Miller Aeron PostureFit Support Kit Add-On - Graphite - Size B by herman miller
- **How much does it cost?** ₩289867 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/3558017-herman-miller-aeron-posturefit-support-kit-add-on-graphite-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 & Reliable:** Backed by Herman Miller’s 3-year warranty for peace of mind
- • **Health-Forward Upgrade:** Transforms your chair into a posture powerhouse, reducing lower back pain and boosting productivity
- • **Seamless Compatibility:** Fits all Size B Classic Aeron chairs with Tilt Limiter—upgrade your existing setup effortlessly
- • **Ergonomic Sacral Support:** Patented PostureFit tech aligns your spine for all-day comfort
- • **Quick & Easy Installation:** Install in minutes with just a Philips screwdriver—no hassle, no downtime

## Overview

The Herman Miller Aeron PostureFit Support Kit Add-On (Graphite, Size B) is a patented ergonomic accessory designed to enhance lower back support by promoting natural pelvic tilt and spinal alignment. Compatible with all Size B Classic Aeron chairs featuring a Tilt Limiter, it installs quickly and comes with a 3-year warranty, delivering a health-conscious upgrade that transforms your chair into a premium posture solution.

## Description

Herman Miller’s patented PostureFit Kit provides back support at the base of your spine, or sacral region, helping your pelvis maintain a natural forward tilt to prevent slouching. By doing so, PostureFit keeps your spine in healthy alignment to help eliminate lower back pain. The Classic Aeron PostureFit Support Kit is recommended for people who sit up straight in their chair to perform tasks. It is compatible with all sizes (A, B, or C) of Classic Aeron Chair and Classic Aeron Stools, provided the chair has a Tilt Limiter option. To identify whether your Classic Aeron has a Tilt Limiter, reach down with your left hand while sitting in the chair; if you locate one or two levers attached to the chair’s tilt mechanism, your Classic Aeron has a Tilt Limiter. To find the size of an Classic Aeron Chair, stand behind the chair and feel for the raised dots under the top edge of the back frame. One dot is Small size, two dots in a row is Medium size, three dots in a triangle is Large size. Care & Maintenance: For normal cleaning, wash plastic surfaces with a soft cloth soaked in mild detergent and warm water. Rinse thoroughly and dry with a soft cloth. Do not use solvents or abrasive kitchen cleaners.

Review: Not the same as lumbar support, a little better. - This supports the back from the base of the spine, and doesn't feel as extreme as the lumbar support. That said, it does provide all the support needed and it is a nice adjustable upgrade for the Aeron. The previous "old" lumbar support only has two support settings, and to select between a little support and a lot, it requires removing the support bar from the chair, flipping it over, and reinstalling it. For the PostureFit, the adjustment can be made using a knob for a little support, a lot of support, and everything in between. The pieces fit on the frame in a way where the original designers apparently planned for this type of addition. There's a hidden bump/tab that helps align the bracket for the knob. Initially the bracket was a little tricky to get aligned, but it's because the pieces fit so tightly together. Fits on the Aeron in a way that makes it feel like it came this way from the factory. Despite what the manual says, the PostureFit kit can be installed with a Philips head screwdriver and nothing else. There are YouTube videos for help installing if you get stuck, but I feel that the written instructions are reasonably written and the illustrations are sufficient. The bottom of the support is pulled toward the front of the chair by a cable. This cable is held in place by a bracket, but most importantly, the cable passes straight through the mesh back rest. I do not think it is possible to install it without widening a small hole in the mesh back rest. I was very careful during the install, but there is still a small widened area of mesh where the cable passes through. This means that once you install the kit, even if you remove the kit, there will always be a small hole in the base of the mesh back rest. I double checked the location for mine, and it is so low on the back rest that it is below the seat bottom. This means it is only visible from behind the chair. If this sort of irreversible change bothers you, this kit may not be for you as replacement back rests can be very expensive. If you already have a lumbar support on the chair, I am not sure that this kit is worth the money. In the absence of lumbar support on the chair, this kit is absolutely worth the money.
Review: IT IS NOT LUMBAR SUPPORT - If you are seriously thinking about it just stop right now and BUY IT. I recently strained my lower back and decided to purchase the PostureFit. After using it for a week I can safely say that I wish I had purchased it when I originally bought the chair. It is not lumbar support. It actually works to strengthen your lumbar and straighten your spine by forcing the pelvis forward. Just Google "PostureFit Design Story" If your only worry is the installation, just stop right now and BUY IT. It's super easy to install. There is a little booklet with instructions a child could follow. There are also installation videos online. If you know what you're doing it takes about 5 minutes. Expect to spend 15 minutes or so if it is your first. The wire is blunt tipped and is never in danger of damaging the chair.

## Features

- Compatible with all size B Classic Aeron Chair and Classic Aeron Stools, provided the chair has a Tilt Limiter option.
- This is the support kit ONLY - chair is not included
- Installation takes minutes and will feel like a brand new chair.
- Solution for a healthful posture and significant improvement toward lower back support in a work chair.
- Comes with a 3-year Herman Miller warranty.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000LT6BFS |
| Additional Features | Patented PostureFit Technology |
| Age Range Description | Adult |
| Arm Style | Armless |
| Assembly Instructions Description | Assembly required. Instructions included. |
| Back Style | Solid Back |
| Best Sellers Rank | #766,993 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #1,368 in Home Office Desk Chairs |
| Brand Name | Herman Miller |
| Color | Graphite |
| Customer Reviews | 4.2 4.2 out of 5 stars (256) |
| Fabric Type | Plastic |
| Fill Material | Foam |
| Finish Types | Plastic |
| Form Factor | Office Chair |
| Frame Material Type | Aluminum |
| Furniture Base Movement | Swivel |
| Furniture Finish | Plastic |
| Included Components | Herman Miller Aeron PostureFit Support Kit |
| Indoor Outdoor Usage | Indoor |
| Is Customizable? | No |
| Is Foldable | Yes |
| Item Weight | 1.3 Pounds |
| Leg Style | Pedestal |
| Manufacturer | Herman Miller |
| Manufacturer Part Number | AE905BG1 |
| Manufacturer Warranty Description | Herman miller's 12-year warranty covers everything that makes up their standard office furniture products—including electrical components, casters, pneumatic cylinders, tilts, and all moving mechanisms. |
| Material Type | Lyris |
| Maximum Weight Recommendation | 300 Pounds |
| Model Name | Classic Aeron |
| Model Number | AE905BG1 |
| Pattern | Solid |
| Reclining Position Count | 1 |
| Required Assembly | Yes |
| Room Type | Kitchen |
| Seat Depth | 16.81 inches |
| Seat Material | Plastic |
| Set Name | Size B |
| Shape | U-Shaped |
| Size | Size B (Medium) |
| Style Name | Modern |
| Surface Recommendation | Hard Floor |
| Tilting | No |
| UPC | 616639732047 782794007051 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Herman Miller
- **Color:** Graphite
- **Item Weight:** 1.3 Pounds
- **Material:** Lyris
- **Size:** Size B (Medium)

## Images

![Herman Miller Aeron PostureFit Support Kit Add-On - Graphite - Size B - Image 1](https://m.media-amazon.com/images/I/71eQ8RbGCwL.jpg)
![Herman Miller Aeron PostureFit Support Kit Add-On - Graphite - Size B - Image 2](https://m.media-amazon.com/images/I/314DzsxhP3L.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: what is the difference in the sizes ? A-C?**
A: They correspond to the size of your chair.  To find out what size your chair is, do this: rotate your chair until you are viewing the back of the chair. Place your hand on the top of the back frame that is shaped like a handle. On the back side of the piece are raised dots indicating which size chair you have. Three dots are used for size C chairs, two dots for size B and one dot for size A. If you need assistance locating the size indicator, please give Herman Miller a call at 888.798.0202.

**Q: Would this purchase just be the kit for the chair?**
A: Yes, this kit comes with the Lumbar Support and associated hardware needed to attach to a Classic Aeron.

**Q: One hundred dollars for this piece of plastic??**
A: This is the entire kit with control knob and rear Posturefit assembly.  BACKSTORE

**Q: Does this work with the newer 2018 Remastered Aeron chair?**
A: it's for all sizes classic Aeron chairs only , not for Remastered Aeron chair ,
Thanks

## Customer Reviews

### ⭐⭐⭐⭐⭐ Not the same as lumbar support, a little better.
*by B***N on July 31, 2019*

This supports the back from the base of the spine, and doesn't feel as extreme as the lumbar support. That said, it does provide all the support needed and it is a nice adjustable upgrade for the Aeron. The previous "old" lumbar support only has two support settings, and to select between a little support and a lot, it requires removing the support bar from the chair, flipping it over, and reinstalling it. For the PostureFit, the adjustment can be made using a knob for a little support, a lot of support, and everything in between. The pieces fit on the frame in a way where the original designers apparently planned for this type of addition. There's a hidden bump/tab that helps align the bracket for the knob. Initially the bracket was a little tricky to get aligned, but it's because the pieces fit so tightly together. Fits on the Aeron in a way that makes it feel like it came this way from the factory. Despite what the manual says, the PostureFit kit can be installed with a Philips head screwdriver and nothing else. There are YouTube videos for help installing if you get stuck, but I feel that the written instructions are reasonably written and the illustrations are sufficient. The bottom of the support is pulled toward the front of the chair by a cable. This cable is held in place by a bracket, but most importantly, the cable passes straight through the mesh back rest. I do not think it is possible to install it without widening a small hole in the mesh back rest. I was very careful during the install, but there is still a small widened area of mesh where the cable passes through. This means that once you install the kit, even if you remove the kit, there will always be a small hole in the base of the mesh back rest. I double checked the location for mine, and it is so low on the back rest that it is below the seat bottom. This means it is only visible from behind the chair. If this sort of irreversible change bothers you, this kit may not be for you as replacement back rests can be very expensive. If you already have a lumbar support on the chair, I am not sure that this kit is worth the money. In the absence of lumbar support on the chair, this kit is absolutely worth the money.

### ⭐⭐⭐⭐⭐ IT IS NOT LUMBAR SUPPORT
*by S***S on January 16, 2014*

If you are seriously thinking about it just stop right now and BUY IT. I recently strained my lower back and decided to purchase the PostureFit. After using it for a week I can safely say that I wish I had purchased it when I originally bought the chair. It is not lumbar support. It actually works to strengthen your lumbar and straighten your spine by forcing the pelvis forward. Just Google "PostureFit Design Story" If your only worry is the installation, just stop right now and BUY IT. It's super easy to install. There is a little booklet with instructions a child could follow. There are also installation videos online. If you know what you're doing it takes about 5 minutes. Expect to spend 15 minutes or so if it is your first. The wire is blunt tipped and is never in danger of damaging the chair.

### ⭐⭐⭐⭐ It's better than the standard lumbar with a caveat -- please read before buying.
*by M***Y on July 25, 2022*

Okay, so first the pros. This thing is insanely easy to install and takes maybe 10 minutes of modification to be up an running. Kudos for being consumer friendly on that front. My chair is an '07 and it installed with no issue. (P.S. I installed solely with a Philips screwdriver fyi). Second pro is this lumbar support does provide a more even support than the standard Herman Millar lumbar pad and for what it's worth... is an upgrade. HOWEVER, what you should know before buying is that this lumbar support sits VERY low on the back. I'm a fairly short person (5'5") and I would argue this support is a hair too low for me. However, if I keep it on medium support then I don't notice after about 15 minutes of work. I was hesitant to give this 4 stars as I can easily see this being a bigger problem for taller individuals who use size B Herman Miller's. BUT, my lumbar does feel more supported with this than without. So it does do it's job with the caveat of putting up with the sensation of something touching your lower lumbar. Short version-- this sits very low for a lumbar support but Herman Miller Aeron's are better with this support than without? So it's a weird catch 22.

## Frequently Bought Together

- Herman Miller Aeron PostureFit Support Kit Add-On - Graphite - Size B
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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-05-07*