gustave Bicycle Helmet with Adjustable Lightweight Mountain Bike Racing Helmet Cycling Helmet  (Black)

Super light weight: Incredible lightweight material-225g,the bike helmet will not cause any burden to the rider's head during cycling.Comfortable and Safe: Using high density PC AND EPS,High quality and durable Cycle helmet can successfully protect your head from powerful shocks,keep the riding time safe and smooth.Common dimension: The cycle helmet suitable for 57-63cm head circumference,you can adjustable strap and an adjustable chin strap make the Helmet perfect fit yousele.Ventilation design: Multiple ventilation holes provide excellent airflow from the front to the back,so you can feel cool when you riding even on the hot day.Detachable Visor: The helmet is also equipped with removable visor to keep the sun off your face and out of your eyes.