The Vertx® Assessor Tactical Polo Shirt allows you to conceal a firearm or gear without printing and without the "tell" of an undershirt. The hidden WeaponGuardTM compression underlayer allows for fluid access to your pistol and also acts as a protective layer between your handgun and your skin—so it's more comfortable for all-day wear.
The WeaponGuardTM layer features VaporCoreTM fabric powered by 37.5® Thermoregulation to keep you cool and dry no matter what the mission is or where it takes you. And with built-in wrinkle resistance and a no-roll collar, you'll look clean and professional everywhere you go.
More on 37.5® Thermoregulation climate-control technology.
37.5® is a dynamic thermoregulation technology that activates from humidity to keep your body at the ideal core temperature. 37.5® is made from active particles from volcanic sand and activated carbon from coconut shells that have billions of micropores. If no moisture is present, these particles retain infrared heat given off by your skin to keep you warmer. If moisture IS present, the particles use this energy to move moisture OUT of the fabric to cool you down. It's truly a "smart fabric" for ultimate comfort in any weather.