I have the original defender pro pants. Pretty cool on a hot day, I'd say possibly a little warmer then regular blue jeans. They do have these little zipper up vents, that work ok, even if the tend to get filled up with chips etc. (I usually let them zipped up.) Fit is good, I find them quite comfortable. Biggest gripe is there's no back pockets. There's a newer model out now.Thanks Sean, I have some outside strap on chaps I wear in the winter some but really don’t like them in summer, hot, get hung up on brush/ limbs and restrict movement. I’m probably more likely to get hurt wearing those than nothing. I look into the cloggers. Which ones do you have?