DOT Bluetooth Flip Up Motocycle Helmets Full Face ATV Sport Modular Crash Helmet. High-strength ABS shell, lightweight and impact resistant. Lightweight and lightweight design reduces wind noise. Multi-density EPS safety buffer layer can provide the most advanced energy absorption capacity. The comfortable soft 3D padded lining is made of breathable technical fabric, hypoallergenic, fully removable and washable.Quickly remove the lens base for easy lens replacement. Please choose the correct size according to the fits size.