UNKN Bike Helmet CPSC Certified Bicycle Helmet Professional Breathable Bicycle Helmet56-62cm Adjustable Helmet for

Adjustable helmet: 56-62cm with adjustable strap Universal size with adjustable lynon chin strap fits for most people 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. Reduce sweating and keep cool Manufactured by UNKN. Ventilation: Traditional helmet with angular design never goes out of style. honeycomb type vents which can help increase the speed and keep stay cool and comfortable while cycling 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.Complies with CE.EN1078 safety standards Protected your head well when you had a minor fall off bike Material: small outer shell made of high strength plastic strong and light. The liner is high-level warm fabrics and with high-density foam cushioning layer. With removable protective sweat absorption lining pad comfortable to wear and easy to wash