BUILT TO BREATHE.
The Nike AeroBill Classic99 Hat is made of 4-way stretch fabric with perforations to help you stay dry and comfortable on and off the course.
Nike AeroBill technology combines breathability with sweat-wicking comfort.
Terry sweatband is soft and absorbent.
Laser perforations on the side panels enhance ventilation.
"Designed to the exact specifications of tour athletes." is printed on the seam tape.
- Silicone Swoosh design patch