The HJC C70 Eura Helmet is a full-face street motorcycle helmet designed to combine lightweight protection, effective ventilation, clear visibility, and everyday comfort. Its advanced polycarbonate shell is shaped using CAD technology, while HJC's Advanced Channeling Ventilation System helps move heat and moisture through the helmet during the ride.

• Advanced polycarbonate composite shell provides lightweight protection and comfort
• CAD-developed shell design helps provide a secure and comfortable fit
• Advanced Channeling Ventilation System promotes front-to-back airflow
• Multiple intake and exhaust vents help remove heat and humidity
• HJ-20M clear face shield provides 99% UV protection
• Pinlock®-ready shield design
• RapidFire™ shield replacement system allows quick, tool-free shield removal and installation
• Integrated internal sun shield
• SuperCool™ interior helps wick moisture and improve comfort
• Removable and washable interior liner
• Eyeglass-friendly interior design
• Micrometric chin-strap buckle
• Designed for street and touring motorcycle riding
• Size: Medium

HJC C70 Adult Helmet Size Chart

How to Measure: Wrap a soft measuring tape around the widest part of the head, about one inch above the eyebrows and around the largest portion at the back of the head. Keep the tape level and snug without pulling it tight.

Fit Note: A motorcycle helmet should fit securely and evenly around the head without painful pressure points. It should not shift excessively when the rider turns or shakes their head.

The interactive size finder uses head circumference as the primary measurement. For helmets, proper secure fit should take priority over a looser fit preference.