Dot certification: Triangle motorcycle helmet meets dot fmvss-218 safety standards, constructed with abs shell and eps linere Multiple ventilation system: the full face motorcycle helmet has 4 well-designed vents at the chin, top and back to optimise airflow Dual visor system: This helmets comes with two visors: clear and a tinted.The clear visor is perfect for all weathers,while the tinted one offers the protection on sunny days Comfortable & Breathable: With a removable and washable thick sponge lining,this helmet offers breathability and comfort,keeping you dry every time you wear it Adult-size racing helmets: Our helmets are available in 4 sizes (S,M,L, XL) to fit all adult riders. Measure your head circumference for a perfect fit. Choose the size based on our size chart