Casque DRT5 Maven Size:L the 509 Sinister X7 Fuzion

the 509 Sinister X7 Fuzion Goggle is ready to change the way you ride

extended lower back coverage

YKK® heavy duty zippers

Recoil Starter Spring

this helmet is compatible with SMART HJC Bluetooth systems

Casque DRT5 Maven Size:L the 509 Sinister X7 FuzionADJUSTMENT: The BOA 360 adjustment system includes an adjustable dial that allows for secure, personalized adjustment. LIGHT: The DRT5 Maven weighs 60 grams less than the previous DRT5, making this helmet lighter than ever. PROTECTION: The MIPS safety system is a low friction layer built into the helmet that helps reduce harmful forces that could otherwise cause the wearer to hit their head. VENTILATION: The DRT5 Maven has a total of 19 vents,