The APM is for the rider that requires ultimate protection. Four ventilation holes provide airflow, while the Gelfoam leather harnes increases facial protection and is perforated for breathability. The harness covers the base of the skull and boasts an impact absorbent panel that doesnt interfere with a rider's head position. Safety Standards: Kite Marked to PAS015:2011; CE marked to VG1:01.040 2014-12: Certified by SEI to ASTM F1163