ROCK BROS Road Bike Helmet for Men Women Adult Bicycle Cycling Helmet CPSC Certified Lightweight Mountain Helmet

ROCK BROS Bike Helmet Lightweight Bicycle Cycling Helmet for Men Women CE Safety Standard Adult Bike Helmets Mountain & Road Brand: ROCK BROS Material: PC + EPS Foam Net Weight: SIZE L: 275g ( 0.62lb ). Size M: 256g ( 0.56lb ) Package Size: 11.62 * 9.01 * 6.76 inches ( 29.5 * 22.9 * 17.2cm ) Color: White Grey, Red Black, Black, Ti Head Circumference: SIZE L: 22.8 to 24.8 inches (58-63cm), SIZE M: 21.2 to 22.8 inches (54-58cm) Features: HIGH QUALITY & SAFETY CONSTRUCTION: High quality PC material & multi-density EPS foam with reinforced frame for additional safety and integral moulding technology, integrated edge-wrapping design help the bike helmet a well performance.Protected your head well when you had a minor fall off bike LIGHTWEIGHT: Size M: 0.56lb, Size L: 0.62lb. Lighweight bike helmet designed for road mountain cycling, kept the weight to an absolute minimum without sacrificing safety. Reduce the pressure on the head while riding MAGNETIC BUCKLE & CHIN STRAP: Innovative design: upgrade magnetic buckle replace the traditional buckle will provide more convenience for wear & release cycling helmet. Upgrade chin strap.The special adjustment button on the chin strap can be adjust easily, you can Loosen & Tighten the chin strap with one hand easily VENTILATION & AIR FLOW: Unique aerodynamic design for this mens bike helmet, 25 massive breathable vents will offer optimal airflow and minimal wind resistance, which can reduce air resistance effectively and save your energy during the bike riding COMFORTABLE: Thickened & Detachable inside Liner and Chin pad can be cleaning easily and no smell, also provide more shock absorption and keep your head comfortable. Providing SIZE M: 21.2 to 23.2 inches (54-59cm), SIZE L: 22.8 to 24.8 inches (58-63cm) for your choice, choose one more suitable size for your small & large head