What Our Gearhead(R) Experts Are Saying: "I use this cap on hot, sunny rides because it adds sun protection without adding any heat. The X-Static mesh breathes incredibly well, and the Smart Seam design means I never feel it under my helmet. The short brim is perfect for staying low in the drops without losing visibility." We turn to the Giro SPF Ultralight Cap when the sun is high and the miles are long. Its airy X-Static mesh top panel brings UPF 30+ sun protection with excellent breathability, helping us stay cool and confident during warm-weather training. The low-bulk design disappears under a helmet, and the Smart Seam construction eliminates pressure points for a smooth, distraction-free fit. With a shortened brim for clear vision in aggressive riding positions, this cap balances shade, comfort, and breathability on even the hottest days. Ultralight and purpose-built, it gives us the coverage we want without interrupting the flow of a good ride.