These are brand new, tags still on. The tag says they are the white “thermal” leggings but I would not describe these as thermal at all. They are waffle 🧇. They look, feel, and fit exactly like the ribbed version of these leggings (included pics) but with that waffle design you see on a thermal. They are not lined with thermal material or anything like that. I am between a small and medium in bottoms but since these were white and a stretchy yet firm (holds you in!) kind of material so I went with the medium. They fit perfectly and the tie allows you to adjust tightness if needed. Not see through which I know is always the big question with white! Full length Mid/High Waist Tie in front Ask any qs!