The SS1710 Split Decision Modular Helmet features an Advanced Thermo-poly Alloy Shell Includes Cool-Core Removable, Washable and Moisture Wicking Liner Air Strike Direct Course Ventilation System DVD Drop Visor Design All Clear! Sight System Optically Correct Anti-scratch, Anti-fog and UV Resistant Face Shield Single Action Chin Bar Release Double 'D' D-Ring Retention System