Performance: ASTM-SEI certified (ASTM Standard F1163-04A) Impact Absorption: Lightweight high density ABS material provides superior impact resistance. Retention & Stability: Contoured drop back shell and comfort foam interior cradle the head for increased protection. Ventilation: Functioning top and rear vents for high temperature relief Style: Aggressive cut away profile in carbon fiber print. Features: Rear reflective strip and flexible visor