Channel your Portland Trail Blazers fandom and breezy vibes with the Columbia Slack Tide Camp Button-Up Shirt. Made with 100% polyester and mesh lining, this shirt is built for breathability and comfort. Plus, Columbia signature Omni-Wick and Omni-Shade technologies work together to keep you cool, dry and protected from harmful UV rays. While making sure that your Portland Trail Blazers pride is always on display.