HJC Kypärä i80 Velly Musta/Harmaa MC5SF

“APC” Advanced Polycarbonate Compound: By blending high-grade polycarbonate with high impact strength and ABS in an optimal ratio, HJC has developed a shell that is both strong and impact-resistant while maintaining a lightweight design.“ACS” Advanced Channeling Ventilation System: Top vents and 2 step toggle lower vents; Full front-to-back airflow flushes heat and humidity out of the helmet