Advanced Polycarbonate Composite Shell ACS Advanced Channeling Ventilation System Anti-Fog System SuperCool Moisture-Wicking Interior Includes Pinlock-Ready HJ-31 Shield RapidFire Shield Replacement System D-Ring Retention System Bluetooth Ready Compatible Standards: Snell M2020D (3XL-5XL DOT Only) Construction: Injection Molded Advanced Polycarbonate Composite Shell Weight