Giro Verce Womens Bicycle Helmets You'll feel comfortable, confident, and look great wearing the Giro Women's Verce Bike Helmet on the singletracks. The Roc Loc Sport Fit system gives a custom and secure fit all with a simple turn of the dial knob. Plush padding, 18 vents, and a removable visor makes the Verce a premium helmet. Adjustable Fit offers a snug and comfortable fit for head circumference 50-57 cm Designed for mountain biking Trail-inspired design with deep coverage Roc Loc Sport Fit system provides an adjustable, comfortable fit In-mold polycarbonate shell with EPS foam liner for impact absorption Full Hardbody shell for maximum durability Features extra plush quick-dry padding for comfort Removable visor for coverage from the sun Reflective detailing for added visibility