Wow! What a pleasant surprise! Was not expecting the quality product I received. I ordered these for my adult daughters. They are both about 5โ 3โ and 100 lbs. wear petite and in jeans size 0. I ordered XS. They look like they will fit perfect in the waist, length is a question mark but close. I wonโt know exact fit until after Christmas. I will update. Iโm 5,5โ and they looked like the would almost fit me foot to waist, but just shy. The pants themselves are a thick fleecy soft Sherpa - definitely going to be warm. The foot opening under the arch on the bottom of the โfootieโ is a flat opening and doesnโt appear to be an irritation issue walking in your feejays. Itโs a soft flat stretch spandex that is made to pull open to expose your feet if they get too warm or to walk up and down stairs without slipping. The bottom foot part has no anti slip dots on them, hence the ability to โpopโ your feet out. This also allows you to sort of tuck the toe and heel up into the bottom of the leg inside to create a pant โlookโ.