Herman MillerReplacement Classic Aeron Office Chair Seat Foam, Fits Medium Size B and Small Size A

Perfect fit! The previous pad was so degraded there wasn’t much to remove. I definitely notice an improvement, should have replaced it a long time ago.

Fit well and and was installed easily by only letting the sticker backing only hanging off a little, and fully seating the insert before pulling the adhesive backing off. Wish it was a little more firm but seems to be an exact oem replacement.

Easy to install, but more 3M tape would be helpful.

Does what it needs to do, holds up well.

This product fit pretty well. The hardest thing is to slide it into the right position without having the the stick tape getting hung up in the wrong position.

I got my Aeron over 10 years ago,, but only used it occasionally when I got home from work. I have been working from home since 2020 and was happy that I already had a great ergonomic chair which got lots of use over the last two years. Due to overall age of the chair, which hasn't had any issues aside from this pad, and increase in recent use, I noticed the original pad would start moving/shifting every couple of months, so I was happy to find an affordable replacement. Once installed, I could feel the difference immediately. Will make sure to replace more often as needed going forward.

Made a world of difference to the chair. Feels like new again.

Arrived loose in a plain brown box with no manufacturer markings on the pad nor in a labeled parts bag. Every indication is this is a knock off and not as advertised.Fits well except for the poor quality tape as previously mentioned and time will tell if it holds up.