The laws of thermodynamics state that heat always moves to colder areas. With the long-legged Thermic LL Baselayer pants REV IT! fights physics with physics. Thanks to the use of hypoallergenic Dryarn® fabric in very specific, strategically placed knit patterns, REV IT! s R&D department has succeeded in developing a baselayer pant that actively insulates body heat. At the same time, sweat is wicked to the outside, absorbed by the fabric & evaporates away from the skin, so moisture can t move back & forth between the cold outside & the warmth inside. Even the elastic waistband & hems at the bottom of the legs are designed to keep the base layer comfortably snug around the waist & ankles, preventing heat from escaping. Much more than just underwear By effectively trapping body heat, your body has to burn fewer calories & expend less energy to maintain its temperature. Energy that you could put to good use instead to stay efficient & focused. The Thermic LL baselayer pants j...