Originally Posted by FenderTL5

I'm wearing Levis Commuter pants (not exactly jeans) today.
I have two pair. A khaki pair I bought a little over a year ago and a new pair in black.

They're too hot in the heat of summer. They work well on their own in the transitional seasons. I wore them coupled with a base layer at 0°F for 5 miles 1way with no worries.
The older pair could use a little refreshing of it's water resistance chemicals. When new/before washing a couple times, they worked better than expected. I've stayed relatively dry even in a downpour. The water just beads up and rolls off - like fresh wax on a sports car.
The black pair (linked above) doubles well in the office. The look like any other "dockers" style pants.
For me, they're very comfortable on the bike - except in the heat. I have to lighten up in the hottest parts of summer.