I bought my leather Dainese pants barely one size larger so they work with sweats in the winter and fit a tiny bit loose when it's hot so I'm not stuck in them.
They have perforation venting on the leg top only above the knee.. I would not consider them winter/cold weather pants but I did buy them for thermals/sweats underneath. Now I can use them year round on a sunny day since I'm in Cali. They are vented well and air flows right through the top of your leg. I can see wearing them in 110*f. As soon as you start moving they cool off quick.
I don't ride in the rain if I can avoid it at all.
They fit so perfect hot or cold that I wear full leathers with sliders everywhere now. Feels a little funny walking around in a store but oh well. I get to ride a motorcycle all over and the people staring don't.
These things are sweeeeeet. Felt the best at the store for me over everything else I spent hours trying on. I wear them at home now just chillin cause they're so comfy. lol Helps break them in too.
http://www.mot-store.de/products/en/...-SF-PELLE.html
I should have bought some of these pants years ago. I'm glad I have them now for sure.