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Whether you ride on the pavement or the dirt or both the Sierra R has the features you need for your next two-wheel adventure. Combining a full windscreen and a visor with a drop-down tinted shield the Sierra R helmet will get you anywhere you want to go. Shell is constructed with ABS. Moisture-wicking removable/washable air channeled comfort liner. Vent holes for optimal ventilation. Integrated face shield with UV protection. Height adjustable helmet shield. Padded Chin Strap with Double-D safety lock. Designed for Street Enduro and Adventure Bikes. Side goggle traction pad keeps goggle strap securely in place. High air intake mouth vent with screen lets air in while keeping debris out. Meets DOT and ECE 22.05 safety standards.