100% cotton. Curved brim. Adjustable back strap. Top Button. Embroidered eyelets for breathability. Maxi oval D patch. Detailed with frayed edges. Diesel updates the classic baseball hat with a maxi oval D patch cut from tonal terry fabric and detailed with frayed edges for a worn look. More traditional design elements include a curved brim, top button, and embroidered eyelets that enhance breathability, as the style is finished with an adjustable strap on the back.