Polycarbonate shell: Liner bound to the polycarbonate shell. You can ride rest assured knowing that this helmet is ready to protect and absorb any damaging impacts if you have a crash. Rock locks five systems: The Giro Source helmet is also fitted with a lightweight rock lock five systems that will ensure comfort and stability during your ride.

Find out which bike helmets are the most comfortable, safe and stylish for different types of cycling. Compare features, prices and ratings of the best bike helmets in 2024, including...

Compare the features, pros, and cons of 20 full-face helmets for downhill, enduro, and pedal-friendly riding. Find out which models offer the best protection, ventilation, comfort, and style for your needs.

Fusion In-Mold polycarbonate shell - A process pioneered by Bell bonds the helmet's outer shell to the EPS foam liner to create a sturdier helmet. Float Fit - A minimalist, lightweight fit system with an easy-to-turn rubber overmolded dial for adjustments (integrated with MIPS)