Trail-specific design with extended rear coverage AirFlow ventilation combines 18 straight side vents to guide airflow through deep internal channels to keep riders cool at variable speeds Removable, moto-style extended protection visor mounts cleanly to the sides and is infinitely adjustable on the move Integrated goggle strap clip keeps the strap in position and prevents goggle from falling off in a fall Low-speed and high-speed impact-tuned construction with Direct Support vents, optimized low-density EPS, and ultra-thin toughened polycarbonate shells all in-mold bonded together More Info Sport: Cycling Product code: 4713250830179 Giant Roost Helmet - Small (51-55 cm)