Showcase your Houston Astros team pride even out on the water with this Columbia Omni-Wick Low Drag Offshore Button-Up Shirt. This shirt features a mesh design, vented back yoke and Omni-Wick™ technology that pulls moisture away from the body, so you can stay cool and dry all day long. Plus, with Omni-Shade™ technology, this shirt blocks harmful UVA and UVB rays, making it perfect for a day at the ballpark or out on the water.