Take a closer look at the 5.11 Men's Aerial Short Sleeve Shirt and you'll see how the it is engineered to help you stay cool and alert. It starts with highly breathable, moisture wicking fabric and a 2.8-oz. 100% polyester fabric body with mesh liningon the back yoke. Vent-Tac fabric provides breathe-through ventilation and excellent air flow. And the RAPIDraw placket gives the peace of mind knowing you can quickly access your concealed carry.Features100% polyester with Vent-Tac properties, 2.8-oz., wicking finish RAPIDraw snap placketFold down two piece collarCCW readyWicking finish100% Polyester mesh in back yoke for breathability.