Retrospec Silas Road Bike Helmet with 24 Air Vents & Built-in LED Safety Light – Adjustable Adult Cycling Protection 54-61cm – Padded & Lightweight Design

NEAR UNIVERSAL COMFORT FIT: Our adult helmet and bicycle helmets adjust from 54-61cm with an intuitive dial system, delivering a secure, personalized fit for most head sizes without pressure points
ADVANCED VENTILATION DESIGN: 24 strategically placed vents with internal air channels create constant airflow through this cycling helmet, preventing overheating on long rides
INTEGRATED SAFETY LIGHTING: Built-in 4-LED bike lights work as a bike headlight with 3 flash modes, enhancing visibility in low light, making you noticeable to vehicles from all angles