The upper air intake hole is placed to increase the air volume to the inside of the helmet.
The rear air vent is integrated with the computer suite, allowing it to be placed for optimal flow ventilation. Includes breathing guard and chin curtain.
Harmonization - ECE R-22.05 (Europe) and FMVSS Transport No. Helmet Safety Standards 218 (US).
AXOR HELMETS APEX XBHP 299 D/V-E NYB/NEON YELLOW BLUE