Giro Ash Women's Bicycle Helmet Closeout. The Giro Ash Women's Bicycle Helmet features a simple silhouette and sleek lines while underneath you'll find Tour de France proven technology. The In Mold construction is shaped to give a classic look, increase aerodynamics and improve structural support. Its Roll Cage technology provides an extra measure of strength and integrity that you'll never notice, unless you need it. Elaborate internal channeling and 19 vents provide excellent flow through and take cooling power to new levels while its fit is second to none via the Roc Loc Air retention system. It's fully adjustable and creates a gap between the forehead and the inside of the Bicycle Helmet to further enhance the cooling equation.