Aerodynamic Shell Design QSV-2 Sun Shield System 3 Intake and 5 Exhaust Vents Multi-Ply Matrix AIM Shell 3D Max-Dry System II Interior Micro Ratchet Chin Strap CNS-1 Shield System SENA SRL2 Bluetooth Communication System Compatible Includes Breath Guard, Chin Curtain, and Pinlock(R) EVO Lens Pinlock(R) CWR-1/CW-1/CNS-1 Lens Insert [https://helmethouse.com/pinlock/cwr-1-cw-1-cns-1-lens-insert.html#sku-0209-9800-00] (DKS301) Standards: DOT-218 Construction: AIM (Advanced Integrated Matrix) Weight: Shell 3.64 lbs (based on Size Medium) With the innovative and highly-acclaimed GT-Air as a baseline, the all-new GT-Air II was destined for greatness from the very start. Advancements in design, functionality and performance have further evolved SHOEI's premiere full-face touring helmet, yielding even easier adaptation to the ever-changing conditions throughout your journeys. Featuring a lengthened internal sun shield for optimal sun-glare protection, all-new "first position" shield opening for advanced ventilation and defogging, enhanced aerodynamics and noise-reduction technology, and the ability to seamlessly integrate with the all-new SENA SRL2 Communication System, the GT-Air II is equipped to accommodate your every need.