Introducing the Birthday version of our fan fave Lil’ Party Shirt, featuring a greatest-hits print to celebrate a decade of riding, hanging, and not taking ourselves too seriously. With its boxy, laid-back fit, the Birthday Lil' Party Shirt will have you turning heads on the trail and at the brewery. But she’s more than good looks. Lightweight, stretchy, and breathable, this breezy party trick of a shirt will keep you cool and wick away moisture all summer long.