The adiZero Extra is the go-to performance cap for lightweight protection and comfort. Includes reflective accents for visibility and climacool mesh for breathability and moisture-wicking. Introducing ultimate sun protection with minimum 50 UPF to inhibit harmful UV rays. Lightweight, 6-panel performance cap. climacool mesh provides ultimate air flow and moisture-wicking. UPF 50 built into the fabric to guard against the sun’s most harmful rays. Reflective hook-and-loop back closure for visibility and adjustable fit. Non-glare undervisor for best vision while running and training.