I ordered these pants for next year because my current snow pants are too short. Not sure about the warmth yet but they feel better than my old pair.The fit is great, but they do run small (something I expected with the slim fit) I ordered a size larger because I read several reviews with the same comment. I am 5' 9"and tend to wear a medium or a size 8 in pants so I ordered a large. The length is perfect for my long legs and the backside fits and looks great too. Can't go wrong with the true black.