• Head circumference: 53-63cm
• Style: 3/4 open face, vintage helmet
• Weight: 1100g
• Certification: CCC, DOT
• Double D buckle
• Detachable and washable environmental protection lining
• Sweat-absorbing and breathable
• Skin-friendly experience
• Reserve Bluetooth Headphone position
• High-density buffer layer
• 3K Carbon fiber