The third iteration of Giro's best-value mountain bike helmet gives you some additional features not found in helmets at this price level. In addition to the 2-position visor, what we like best is the Fidlock magnetic buckle closure that makes one-handed operation no problem. There's also a Roc Loc Trail Air feature that offers micro-adjustable fit adjustment and oversized vents for enhanced ventilation. Certified to meet CPSC / CE standards for bike helmet safety, Montaro III and is Giro's first e-bike NTA-certified open face MTB helmet.