Riding Hemlet MTB Road Bike Integrally-molded Helmet with Taillight Electiric
- Double ajustable head circumference: you can rotate it to ajust tightness
- One piece edging more textured: the pc housing is fully wrapped and the two materials are seamlessly connected
- 17 Wind holes lasting fresh: Refreshing and breathable, reducing stuffiness
- Usb charging, built in taillight: make your riding at night more at ease
