SHOEI® GT-Air3 Discipline Full-Face Helmet. Optimized aerodynamic performance. Wind tunnel tested for maximum noise reduction. CNS-1C Pinlock® Shield System - includes Pinlock® lens. Enlarged QSV-2 Sun Shield System. Enhanced air circulation through multiple venting and extraction vents. AIM shock-absorbent shell and EPS liner for improved impact protection. Emergency Quick-Release System (E.Q.R.S.). Micro-ratchet chin strap. SHOEI Comlink System integrates with optional SENA SRL 3 (sold separately) for simplified installation. Breath Guard and Chin Curtain included. Standards: DOT. Construction: AIM (Advanced Integrated Matrix) shell. Weight: 3.74 pounds / 1700 grams (approximately based on size medium solid color).