Ultralight, low profile helmet with large vents providing superior ventilation for a cooler, more comfortable ride. With a DialFit™ comfort system and removable and washable headliner with FlipFold shims for personal fit options, the Liberty is a great option for all types of riding disciplines. Low profile Durable, lightweight construction Six mesh covered vents DialFit™ system FlipFold™ removable washable headliner with Air-Channel™ technology ASTM/SEI-certified Troxel Liberty Helmet - Periwinkle Duratec