Details: - Nike Dri-FIT ADV technology combines moisture-wicking fabric - Shortened AeroBill is breathable and helps reduce distractions - Back strap is easily adjustable to help you find the right fit - Vent holes around the crown are strategically placed based on sweat-mapping - UV protection helps protect against the sun in areas covered by the visor - Perforated liner provides extra breathability - Material: Polyester