Advanced Polycarbonate Composite Shell. Includes adjustable polycarbonate chin bar. Single-Button Chinbar/Faceshield Release. Open with one hand, even with gloves on. ACS Advanced Channeling Ventilation System. Full front-to-back airflow flushes heat and humidity out of the interior. Bioceramic Nylex Interior, Anti-bacterial, removable and washable. QuickSlide Shield Replacement System. Quick, secure, tool-less removal and installation of HJ-17 shield. Optically Superior Face Shield, 95% UV protection. Ready for Bluetooth Communication, Bluetooth unit sold separately. Clear Pinlock Lens Included. Standards: DOT-218. Construction: Injection-Molded Thermoplastic shell with ABS / Polycarbonate Alloy chin bar. Weight: 3.63 lbs / 1650 grams (approx, based on Size Medium Solid Color).