ADJUSTABLE COVERAGE. The Nike SB AeroBill Pro 2.0 Hat tops off your look with stretchy, sweat-wicking fabric that helps you stay dry and comfortable on and off your board. Benefits Nike AeroBill technology combines breathability with sweat-wicking comfort. Embroidered eyelets enhance airflow. Terry sweatband is soft and absorbent. Front patch reads "Nike Skateboarding Proprietary Technology." Product Details Adjustable closure Fabric: 100% polyester Hand wash Imported Style: BV2659;Color: Midnight Navy/University Red; Size: ONE SIZE; Gender: Female