Guide-built for high-energy activities in cold weather-from alpine climbing and skiing to hiking, camping, and fishing. Next-to-skin crew features exclusive FreeHeatTM Pro polyester/spandex. The cutting-edge fabric actively generates additional heat when worn against the skin by harnessing kinetic ultraviolet energy.

• FreeHeatTM Pro Active Heating Technology Thermally efficient yarns keep you warmer in cool weather
• FreeDryTM Advanced Moisture Management Wicks moisture for optimal comfort
• Modified raglan sleeves Excellent range of motion
• Strategically placed seams Prevent chafing when layering or wearing a pack