My post was written very late at night and as you should see, I immediately wrote a disclaimer, not wanting to mislead anyone. I only tried to quite published data -- I doubt if any of us have the lab equipment (other than our penises) to measure the thickness of a condom within 0.01mm. There are other factors which one could look up based on materials, such heat transference.
I think one thing can be asserted however, independent of measurements data, is that Skyns like several other brands are made of polyurethane. This means they have less 'stretch' than traditional condoms, so personal fit is even more important. I've always said any respinsible fucker should try many different brands to find what works for him, which is what I've done over the years (I haven't road-trated the new 'invisible' though probably will). A large number of punters don't seem to care, and just accept whatever the prossie provides (I will do so on occasion or if she insists, but always take my own anyway.)
What feels best for one punter will not necessarily feel best for another punter whose cock is even just a little bit bigger or smaller, or circumcised as opposed to uncircumcised.