I’m actually in the market for these as well and I’m just starting my search. So far, I’ve found these a Duluth Trading (in no particular order):

• https://www.duluthtrading.com/s/DTC/womens-flexpedition-pull-on-skinny-pants-55844.html?color=DPM (6 pockets)
• https://www.duluthtrading.com/s/DTC/womens-akhg-meltwater-leggings-80270.html?color=BVG (3 pockets)
• https://www.duluthtrading.com/s/DTC/womens-akhg-bootpack-winterized-skinny-leg-pants-80785.html?color=BLK (shows a zipper pocket)

There are a few others on the site that are made from the same materials, but different cuts, and there are some that are similar but not as well-suited for colder weather.