The Duchinni D606 is a popular flip up helmet with a synthetic ABS shell keeping you safe in the case of an accident, and comfortable as you ride thanks with the spacious flip front design. , and the exhaust vents at the rear. It's aerodynamic designs creates a clean airflow over the helmet meaning less drag and wind noise. The integrated internal sun visor provides ultimate protection from glare and convenience as you no longer need to wear sunglasses whilst you ride. A great lid for the price with superior fit and comfort.