When wicked winter weather threatens our day at the resort we trust the Therm-ic Preformance S. E. T. S-1400B Sock Set to keep our feet feeling fresh. These socks would thrive when skiing or snowboarding even without the artificial heat thanks to a wool blend fabric, slim fit, and over-the-calf height. Once you include the dual battery heating system that pumps heat all the way to our toes, they really become the real deal.