Police lights were added to the basic riding helmet, which was more favorable for police duties.1. The shell material: Engineering ABS 2. Double lens setting: External visor material is PC material, the light transmittance not less than 85%. Internal goggles can resist UV. 3. Wear system: nylon woven belt, quick release plug buckle, safe, comfortable and fast. 4. Removable, high-quality stretch fabric, comfortable inner. 5. Circulation air outlet at helmet tail 6. One-button open is convenient and fast. 7. High strength impact performance. 8. Indirect visibility: horizontal ≥ 105 °, upper ≥ 7 °, lower ≥ 45 ° 9. Size: S:540~560mm M:560~580mmL:580~600mm 10. Weight: about 1.6kgs 11. Color: White/ Black/ Customized