I have a very slender complexion and had exactly the same problem with my Aeron. I came to the conclusion that my 60kg/180cm was simply to little weight over to

I have a very slender complexion and had exactly the same problem with my Aeron. I came to the conclusion that my 60kg/180cm was simply to little weight over to much area to make the foam lip curve enough. Do you happen to be a featherweight also ? I would love to have a mesh chair, but one that works for my complexion.