Here's a version of black party pants that I wore to an interfaith Thanksgiving service on a very cold and windy day.
It was definitely more colorful than I like these days, and more Christmas than Thanksgiving, but oh well.

These pants are new, and I Love them! 100% cotton but sufficiently warm for a 45 degree day. They're wider and flowier than they appear in the pic. I still wear skinny pants sometimes, but wide legs just feel more dressy and elegant to me.