Built From the Ground Up We were looking for the very best, streamlined trucker hat out there that could live up our way of life. So we built it ourselves. We used the same sweat-wicking material as our Tac Hats on the front panels and added mesh in the back for style & more breathability. It provides a better fit with the adjustable back velcro strap and better durability than standard Trucker Hats with our proven materials. Built from the ground up and ready to withstand any adventure. Features Sweat-wicking, lightweight material on the front 2 panels to keep your head cool and protected from the sun Back 4 panels built with streamlined mesh Streamlined sweatband provides comfort without retaining moisture Curved brim The top button: we removed it because it serves no purpose and it hurts when you wear Peltors or other hearing protection 7 1/4" when closed. Same fit as the Performance Tac Hat (57.5cm) 3.5" adjustable VELCROA(R) closure Six (6) panel construction