Strauss Adjustable Cycling Helmet with Detachable Visor | Light Weight with Superior Ventilation | Mountain, Road Bike & Skating Helmet With Premium EPS Foam Lining & ABS Shell | Ideal for Adults and Kids, (Black/Yellow)) HIGH RESISTANT MATERIAL - Special material impact resistance: This Bicycle / bike helmet uses high-density, durable and tough PC & EPS foam. The Integrated molding with superior technology is helpful to decrease the impact force and protects the rider's head during crash ADJUSTABLE - This adult cycling helmet comes with a standard size, equipped with the easy-use dial system and side straps makes this nutcase helmet adjustable to different head sizes LIGHTWEIGHT - This biking helmet is made of lightweight material; the inner pad uses breathable material for a comfort wear. MULTIPLE SPORTS USE - This helmet can be used for multiple sports like for Road cycling, Mountain Biking, Skating, for Skate Boarding and many other uses.