climacool mesh provides ultimate air flow and moisture-wicking
UPF 50 sun protection included to guard against the sun's most harmful rays
Hook-and-loop back closure for adjustable fit
Non-glare undervisor for best vision while running and training
The adizero ii is the everyday performance cap for lightweight protection, comfort and fit. includes Climacool mesh for maximum breathability and moisture-wicking. delivers UPF 50 for ultimate sun protection to inhibit harmful uv rays.