Advanced Polycarbonate Compact Shell Superior Fit and Comfort Using Advanced CAD Technology SuperCool Moisture-Wicking Interior Large Eye Port for Maximum Visibility Pinlock-Prepared HJ-27 Shield Aerodynamic Visor and Shell Converts From Shield/Visor to Visor-Only Helmet Chin Curtain Included Advanced Channeling VentilationSystem Glasses Grooves for Riders with Eyeglasses Double D-Ring Chin Strap Standards: DOT-218 Construction: Advanced Polycarbonate Composite Shell Weight