HIGH COMFORT: Offers a comfortable, flutter-free strap without a belt distributor and a cut-out for ponytails, thanks to a finely adjustable sizing system. STABLE HEAD PROTECTION: The road helmet's in-mold construction ensures a durable, impact-resistant bond between the outer shell and the shock-absorbing inner material. STAY COOL: 10 air inlets connected to 7 air outlets for optimal ventilation when wearing the helmet. FOR CYCLISTS: Adult and youth bike helmet - road helmet for everyday cycling and sport - sizes in cm refer to head circumference.