Rain pants are great in colder weather as they will not only keep the rain and snow off you but help you keep some of the warmth in. They will have a strip of velcro on the bottom of each pant leg to seal the pants closed at the bottom. You will be able to cinch down the waist as it will have shock cord fed through a cord lock making the pants adjustable for all different sizes. We have also put a pocket on the pants that will also double as a stuff sack to store your Rain Pants in.
https://dutchwaregear.com/product/xenon-rain-pants/