Brand | FOAMON |
---|---|
Colour | Black |
Product Dimensions | 45.72 x 51.44 x 15.24 cm; 2.14 kg |
Material | polyurethane, linen, Textile |
Special Features | Cushion Availability |
Item Weight | 2.14 kg |
Consider these alternative items
Learn more
No featured offers available
We feature offers with an Add to Cart button when an offer meets our high standards for:
- Quality Price,
- Reliable delivery option, and
- Seller who offers good customer service
Image Unavailable
Colour:
-
-
-
- To view this video, download
Replacement Seat for Herman Miller Classic Aeron Size B Medium (Black Mesh)
Brand | FOAMON |
Colour | Black |
Material | polyurethane, linen, Textile |
Product Dimensions | 45.7D x 51.4W x 15.2H Centimetres |
Size | SIZE B MEDIUM |
Back style | Mesh |
Frame material | Nylon |
Special feature | Cushion Availability |
Product care instructions | Wipe Clean |
Unit count | 1.0 Count |
About this item
- Fits Your Herman Miller Chair - Measuring 20.25 inch Width x 18 inch Depth x 6 inch Height, our Herman Miller Aeron replacement parts are designed to fit any Classic Aeron chair size B. Replace your old chair seat with great ease!
- Tough & Durable - Our Aeron Seat Replacement 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 replacements in place. This new Aeron chair seat comes with a manual that'll help you remove and replace your old seat.
- Ready To Use - With this new Replacement 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.
- Not Compatible with Aeron SIZE C
- Not Compatible with Aeron Remastered.
Featured items you may like
- Seat Pad Foam Insert Replacement for Herman Miller Classic Aeron Office Chair A B C Size (Black, A/B)FREE Shipping by 鶹Get it by Tuesday, Aug 5
- 鶹 Basics Mid-Back Desk Office Chair with Armrests - Mesh Back, Swivels - BlackFREE Shipping by 鶹Get it by Monday, Aug 4
- MingYi.office Vinyl Arm Pads Caps for Herman Miller Classic Aeron Chair Graphite BlackFREE Shipping by 鶹Get it by Tuesday, Aug 5
- Replacement HM Aeron Seat Pan Size C - New$11.54 shippingGet it Aug 15 - 27Usually ships within 3 to 4 days
Product Description
Want To Renew Your Old Office Chair?
Office chairs are not always indestructible. What once was a sturdy and comfortable new swivel chair will also age and wear down. If you use your chair regularly, then it's likely that you'll eventually see its frame start to break or crack. The firm yet soft mesh you used to love will also end up ripping, sagging, or losing tension as time passes by. But all of this shouldn't mean that you have to say goodbye to your favorite chair. With proper replacement parts, you can restore your chair and bring it back to its former glory!
The Herman Miller Replacement Seat by FOAMON lets you breathe new life into your chair.

The Perfect Fit
Don't get fooled into buying replacements that are too small or too big for your favorite swivel chair. With a 20-inch depth, an 18-inch width, and a 6-inch height, this seat replacement is exactly the right size for Herman Miller Classic Aeron Chairs in Medium Size B. With this replacement, you can easily replace broken or tattered seats without having to throw away your entire office chair!

Built To Last
Whether you're an office worker who needs to sit down in front of a computer all day or a student who spends hours studying and writing on your study table, you need a chair that can support your weight for long periods of time. That's why our seat replacement is made using heavy-duty materials and comes with a reinforced frame to ensure that it won't break, crack, or get damaged right away even if you sit on it all day.

Designed For All-Day Comfort
Sitting on a chair for hours can trap heat and cause our bottom and thighs to sweat. This can make us feel uneasy and distract us from getting our work done efficiently. Designed with your comfort in mind, our seat is crafted using pellicles that offer proper ventilation. This way, you can keep yourself cool and comfortable while you finish your tasks for the day. Our seat also gives firm support to your bottom while still being soft to touch.
More Reasons To Get This Seat Replacement from FOAMON!
That Brand New Look
Just because you've had your swivel chair for years doesn't mean it's okay to settle for replacement parts that don't match or look out of place.
Our durable seat replacement is covered in black OEM LIKE mesh fabric With this, you'll be able to fix up your chair and restore it to its premium-quality look.
Easy To Install
Replace your old seat with four easy steps:
1. Use a 10mm socket, ratchet wrench, and 4mm hex key to remove the nuts and screws attaching the seat link to the frame.
2. Remove the seat frame using a ratchet wrench and 6mm hex bit to remove the hip pivot screw from the swing arm.
3. Place the new seat between the swing arms and attach it using the hip pivot screws.
4. Reconnect the seat links using the original screws and nuts.
For detailed instructions, refer to the manual with images.
Great Gift For Colleagues And Students
Have you noticed that a co-worker or a friend is using a chair that is starting to wear out? Perhaps your child or sibling's mesh seat has started to sag or tear apart? If so, you can make their lives better by giving them an accessory that'll upgrade their old chair! This seat replacement makes for a fantastic present for anyone who sits for hours on their office chair.
Product information
Technical Details
Additional Information
ASIN | B08KGWXM9N |
---|---|
Customer Reviews |
4.4 out of 5 stars |
鶹 Rank |
|
Date First Available | Oct. 2 2020 |
Manufacturer | FoamOn |
Feedback
Important information
Safety Information
Do not exceed the maximum weight capacity of 300 pounds. Ensure proper assembly as per the provided manual to maintain stability and safety.
Brands in this category on 鶹
Customer reviews
Customers say
Customers like the comfort, fit, and quality of the chair. They mention it's very comfortable, fits perfectly, and is easy to install.
AI Generated from the text of customer reviews
Select to learn more
Customers like the comfort of the chair. They mention it's easy to install and very comfortable.
"perfect fit, looks original and is comfortable! easy to swap" Read more
"...seat, everything lines up precisely and is every bit as comfortable as the original seat. Quality you can sit on!" Read more
"Fit is identical to Herman Miller seat. Easy to install and very comfortable. Took 5 min to change seat and install new one with provided tools" Read more
"...I have only had it for a month. It felt good at the beginning, but that did not last long...." Read more
Customers are satisfied with the chair's fit. They mention it's a perfect fit.
"perfect fit, looks original and is comfortable! easy to swap" Read more
"This item was easy to install and fitted perfectly. It is made and finished to a very high standard" Read more
"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!" Read more
Customers are satisfied with the chair's installation. They mention it's easy to install and fits perfectly.
"Fit is identical to Herman Miller seat. Easy to install and very comfortable. Took 5 min to change seat and install new one with provided tools" Read more
"This item was easy to install and fitted perfectly. It is made and finished to a very high standard" Read more
"Much less expensive than a brand new chair. Easy to install." Read more
Customers are satisfied with the quality of the chair. They mention it's a high-quality replacement seat and a good seat.
"...Quality you can sit on!" Read more
"Good seat very good condition" Read more
"High quality replacement seat. Would recommend..." Read more
Reviews with images

Mme russi a le pos sur une type C
Top reviews from Canada
There was a problem filtering reviews. Please reload the page.
- Reviewed in Canada on September 25, 2023Verified PurchaseThis item was easy to install and fitted perfectly. It is made and finished to a very high standard
- Reviewed in Canada on July 12, 2024Verified Purchaseperfect fit, looks original and is comfortable! easy to swap
- Reviewed in Canada on July 6, 2024Verified PurchaseThis 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!
- Reviewed in Canada on January 14, 2023Verified PurchaseFit is identical to Herman Miller seat. Easy to install and very comfortable. Took 5 min to change seat and install new one with provided tools
- Reviewed in Canada on March 21, 2025Verified PurchaseGood seat very good condition
- Reviewed in Canada on March 1, 2022Verified PurchaseMuch less expensive than a brand new chair. Easy to install.
-
Reviewed in Canada on February 18, 2024Verified PurchaseAucune diffrence avec l'original! Filet ferme et aussi beau que le dossier. J'ai russi a la pos sur une type C avec de lger adapteur maison. Mais avoir des vrai types A & C serais encore plus cool !
5.0 out of 5 starsAucune diffrence avec l'original! Filet ferme et aussi beau que le dossier. J'ai russi a la pos sur une type C avec de lger adapteur maison. Mais avoir des vrai types A & C serais encore plus cool !Mme russi a le pos sur une type C
Reviewed in Canada on February 18, 2024
Images in this review
- Reviewed in Canada on November 28, 2024Verified PurchaseVery disappointed with this product. The mesh has stretched and is just as bad as the one I replaced. I would return it but I threw away my other seat so now I am stuck with this POS. I have only had it for a month. It felt good at the beginning, but that did not last long. Hopefully it doesn't get any worse because then I would have to buy a whole new chair. I cannot recommend this product.
Top reviews from other countries
- Colin LimReviewed in Singapore on January 25, 2024
5.0 out of 5 stars A perfect fit for my Aeron Re-mastered.
Verified PurchaseGot this to replace my damaged Aeron Re-mastered. Although it's description was for Aeron Classic, it was a perfect fit for the Re-mastered. Easy to replace with all the necessary tools provided. A quality replacement.
- 鶹 CustomerReviewed in the United States on July 26, 2025
5.0 out of 5 stars Seat for my broken Herman Miller Aeron Chair
Verified PurchaseI have ordered many things that require tools that are supplied, and none would I ever keep. This product came with all the required tools and they are good quality tools, after using them I put them in my tool box. Everything in this order was top notch, from the tools to the packaging. The seat came is a resealable insulated reusable carry bag, perfect for reuse as a bag to bring home frozen food from the store. This is defiantly what I needed to repair my Herman Miller chair, thank you for selling such a perfect product.
-
Axel A.Reviewed in Mexico on March 5, 2023
5.0 out of 5 stars Muy bueno.
Verified PurchaseMuy bueno, trae hasta la herramienta para poder hacer la instalacin, ha funcionado muy bien.
-
Reviewed in Japan on July 21, 2025
5.0 out of 5 stars ӤäƤƤ褫ä
Verified PurchaseΥե`बۤƤơɤ褦ʤBƤΤǤƷǤޤͻޤȤʹ褦ˤʤäǤ
- A. M. GlaeserReviewed in the United States on June 9, 2024
5.0 out of 5 stars Glad I bought it
Verified PurchaseWhen the seat of my 30+ year old Aeron chair failed, I started looking for replacement chairs, and then read a Consumer Report review of office chairs. It still had the Aeron chair listed as one of their top choices. This encouraged me to look to repair rather than replace the chair, and I came upon this replacement seat.
After watching several YouTube videos, I started the replacement process. For the most part, the process went smoothly. Getting the seat and the swing arms detached was relatively easy. Getting the replacement seat and one of the swing arms reattached was also relatively easy. Getting the second swing arm reattached was a bit of a challenge. I own what may be a first-generation Aeron chair, and as shown in the instructions, there are bushings and a spacer that were replaced on more modern versions of the chair. Dealing with the bushings and the spacer on this second arm was a bit of a chore. Add in that I am in my 70s, and don't have a good work bench to work on. Some choice words were uttered while trying to get the hole, bushing, and screw into alignment on that final connection. That said, I dd get it back together, and it seems to function just as it did before the tearing. I do wonder whether over time there has been some distortion/warping of the seat that made reattaching the second swing arm more difficult. In the end, it was worth the effort.
I will note that my seat frame was intact, and it was only after i ordered that i noticed one could buy just the mesh insert and replace it. If I live long enough to need to replace the mesh again, this might be the route I pursue. It reduces the cost to about half of what this product runs. For now I am happy to have my chair back.
Disclaimer:While we work to ensure that product information is correct, on occasion manufacturers may alter their ingredient lists. Actual product packaging and materials may contain more and/or different information than that shown on our Web site. We recommend that you do not solely rely on the information presented and that you always read and follow labels, warnings, and directions before using or consuming a product. This product may not be right for you. For additional information about a product, please contact the manufacturer. Content on this site is for reference purposes and is not intended to substitute for advice given by a physician, pharmacist, or other licensed health-care professional. You should not use this information as self-diagnosis or for treating a health problem or disease. Contact your health-care provider immediately if you suspect that you have a medical problem. 鶹.ca assumes no liability for inaccuracies or misstatements about products.