Replacement Seat for Herman Miller Classic Aeron Size B Medium (Black Mesh)

Wow, am I impressed. My package arrived with very impressive contents. The seat was provided inside a wonderful case along with a package of all the tools required for the installation and very detailed instructions. The replacement took only 15 minutes for the changeout. Everything is quality and great. Herman Miller is absolutely the best. The chair I have if comfortable and functional. adjustment capable and looks great.

This is a perfect fit for our Aeron chair that fell apart after more than 25 years of use. It seems to be as good quality wise as the original and was straight forward to install. Very comfortable with the same feel as the original.

Perfect! Easy to install, made my chair new again! Thanks.

Easy to install and perfect fit. Buy w confidence

This is a third party replacement for the seat of an Aeron chair size-"B".It fits PERFECTLY for a size B.If you read someone complaining that it doesn't fit, it is because they ordered the wrong itemOR the wrong item was shipped to them. But the item listed here, the one I have received fits a size B perfectly! NOTE: The amazon listing has clear images showing the dimensions of a size-B and size-C chair seat. It also has (and I found this to be the most useful) an image illustrating how the back of the chair has TWO screws for a size-C chair and ONLY ONE CENTERED screw for a size-B chair. I included a photo of my size-B chair for illustration.The good:- It fits perfectly and it's easy enough to replace.The Bad:- The product arrived with a torx screwdriver instead of a 4mm hex key.If you have a set of hex key at home, you're good. Otherwise get one here with a 4mm key.(Note: I only had an imperial set of hex keys and I found and used on that was close enough to hold securely)- The instructions are terrible (mostly ass covering with CAUTION boxes).But it's easy to install. Here are the simpler instructions:Removing the old seat:1) Remove the large side screws holding the seat of the chair using the larger 6mm hex / Allen key2) Remove the 2 sets of nuts/bolt forming the "collarbone" connector below the chair, using the provided 10 mm socket and the (or your) 4mm hex / Alen keyPutting in the replacement seat:1) Attach and screw in the 2 sets of nuts/bolt forming the "collarbone" connector below the chair, using the provided 10 mm socket and the 4mm hex / Alen key.** IMPORTANT** do these ones first or (like me) you will have to redo it... if you put the larger screws in first, you won't be able to access the space to put in those smaller ones after.2) Align the seat, insert and screw in the large side screws holding the seat of the chair using the larger 6mm hex / Allen keyConclusion:Bad instructions, wrong tools (but hey, they **included** tools, so it's not too bad!).Great seat, that fits perfectly!Verdict: If you have a size-B chair and need a new seat: GET IT herre!!

I recently got a 2002 Aeron Classic size B locally from someone and the chair was in great shape, but the seat was sagging some. It was clear that just replacing the seat would probably be the best bet as it obviously takes the most beating. I was a little hesitant when ordering this because the price was good and the promise seemed big. It kept the promise and is great!It also comes in this insulated tote bag with all of the tools in their own zipper pocket and honestly, the bag itself is just a big bonus. Overall, I've had the seat for upwards of a week, sit in it daily for long periods of time and it feels great! It looks like the original, everything matches up well from a coloring perspective and the mesh looks the same. I really recommend it for anyone who needs a new seat.

When 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.