You can count on this to be the warmest, lightest, driest next-to-skin men`s baselayer in its class. Taking thermals to the next level, this baselayer crew is proven to be 46% warmer, 35% lighter, and 33% drier than the competition. We would argue, downright better. Layer up with a thermal grid, heat-trapping, warmth-circulating fabric and power your way past the pack. And if you break a sweat you`re still covered with moisture-wicking backup. You can trust the built-in comfort-stretch and odor-fighting technology to keep you from feeling weighed down or uncomfortable.