Wear the Columbia Sportswear Men's Houston Astros Tamiami Button Down Shirt and show your love for the Astros. Made of 100% polyester ripstop for durability, this shirt features Omni-WICK technology to wick away sweat and Omni-SHADE UPF 40 sun protection. The shirt also comes with an antimicrobial treatment to protect from bacterial growth, and a team graphic on the front for added style.