Beyond just aerodynamic, POC's Octal Aero provides incredible ventilation and safety. It's unique shape uses a unibody construction that provides more coverage to the temples and the back of the head. It's EPS liner is strategically thicker in sensitive areas, and it's all covered with a durable outer polycarbonate shell. Relective patches help keep you visible and POC includes their scannable ICE tag. To keep this aerodynamic helmet from overheating, POC included Coolbest padding to reduce the temperature between your head and the helmet. Additionally, large exhaust ports at the back of the helmet move warm air out and increase air circulation so you can keep cool even at your red line.