I commute by bicycle, even in the ridiculously cold temperatures we've had lately (14-20 below zero) AND have to be in a dress at least a couple of days a week. These are a lifesaver! I layer them under my dress, under long underwear, and under thermal legwarmers, and with tall boots for the really cold days and I'm toasty warm! I also wore them for wandering around a city in 20 degree temperatures without the other layers (except for the tall boots) and was very comfortable. They were warmer than wearing jeans around in equivalent weather. I will definitely be buying more of these!