I've worn these on rides down into the upper 30's and am quite pleased with them. These are warmer than my last pair, but not quite as warm as a fleece-lined pair I also own. My wife gave me a different pair made from a different material in large and they were too small for my size ten shoes, so I got these instead in an extra large. It this model the large would have been fine. I like the new closure system, it's much better than fighting with zippers.