STAY DRY AND COOL. The Nike Pro Skull Cap is made with stretchy fabric and sweat-wicking technology for a snug fit that keeps you dry and comfortable. The elastic band is perforated to help you stay cool. Benefits: Nike Dri-FIT technology moves sweat away from your skin for quicker evaporation, helping you stay dry and comfortable. Stay cool with a ventilated elastic band. Product Details: 88% polyester/12% spandex. Hand wash. Imported. Style: N1003713; Color: Black/White; Size: One Size; Gender: Unisex; Age Group: Adult | Nike Pro Skull Cap in Black, Size: One Size | N1003713-010