Advanced Polycarbonate Composite Shell ACS - Advanced Canneling Ventilation System Pinlock Ready HJ-36 Visor Quick, Simple, Secure Shield Ratchet System Double D-Ring Chinstrap Removable, Washable Crown and Cheek Pads Rotational Chinbar Grooves for Eyeglass Wearers Bluetooth Compatible With Smart HJC (Bluetooth System Sold Separately) Standards: DOT Construction: Advanced Polycarbonate Shell Weight