NIKE TW AeroBill Classic 99 Performance Golf Cap 2018 Soft and absorbent terry sweatband keeps you dry on hot days Dri-FIT technology wicks sweat away to help keep you dry and comfortable AeroBill technology integrates proprietary lightweight construction with breathable, sweat-wicking fabric for optimal comfort and reduced distraction 4-way stretch twill fabric construction provides a custom fit Laser perforations on side and back panels enhance breathability and ventilation