Etudes Men's Hats. Fashion category - Hats. SKU - C00NE900CO12BK-BLACK. Color - Black. Size - One Size. Etudes Booster Logo Baseball Cap. This baseball cap from Etudes is crafted from cotton and showcases white graphic embroidery featuring the brand's logo on the front. It is finished with a buckle adjuster at the back, allowing for a customized fit. 100% Cotton.