Willie G Fitted Cap. Combine all-day comfort and breathability with this fan-loved graphic on our Willie G® Fitted Cap. It's made of 100% cotton twill, a fabric that resists even wrinkles and folds, so it can be easily stored in motorcycle bags. It features a fitted closure and a contrast trim for a touch of style. Finished with a raised print of Daytona Bike Week circa 2000, where bikers still like to gather.