Like no other product on the market, the Arid Core Technology DRYSHIRT™ will keep you warmer and more comfortable than any other performance shirt available. Nano-technology allows sweat to migrate through the material while keeping out most precipitation on cold or wet days. This gear allows you to keep your mind off your gear and your head in the game. Water repellent; Breathable; Assists in thermoregulation; Anti-microbial; Comfortable loose fit; Crew neck for a modern look and ease of entry.