Fly Racing 2018 F2 Carbon Helmet - Solid (X-SMALL) (MATTE BLACK) The F2 Carbon represents race-inspired lightweight helmet technology utilizing lightweight Carbon / Kevlar construction. Though it shares many of the same construction features as the leading Formula model, the F2 Carbon has its own unique style and identity. Shell is constructed using state-of-the-art, aircraft-grade woven carbon fiber and DuPont&trade; Kevlar&#174; composite materials, which create superior strength while remaining extremely light. Dual-density EPS liner has two layers of EPS (expanded polystyrene), one softer along with one slightly harder, that combine to provide more progressive impact absorption for different levels of impact. Multi-port air induction cooling system includes 11 intake and 4 exhaust vents that create massive airflow to keep your head cool.