My Bentech has the standard mesh seat. It's really comfortable, so I've
been using it to get to work and back a lot lately.

The only thing is - my backside gets really cold! I guess I'm sitting
on and compressing my clothing under there, and the mesh seat provides
no protection... and there's a lot more airflow around one's buttocks on
a 'bent than on a conventional bike!

Anyone else noticed this, and what, if anything, can I do about it?

I'm considering trying a hardshell seat from these guys:

http://www.dutchbikes.nl/bodies/onderdelen.htm#004