These sweatpants are definitely nice and warm, however because these are polyester, that also means that they are not breathable, so warm can turn to sweat quickly. I'm still giving them 5 stars because the material blend was listed when I ordered them but I didn't read it, so my bad. I will only wear these if sweating is my goal, but otherwise I will not wear them out and about for the reasons stated earlier. The pants run a tad small, so size up if you want a looser fit. I'm between a small and medium in US sizing, and I got a small. They look like awkwardly oversized leggings rather than loose sweats when I wear them.