Injection-molded ABS outer shell is rugged yet lightweight - Expanded Polystyrene (EPS) liner dissipates impact loads and fortifies helmet structure for a secure fit without compromising comfort - Removable/replaceable comfort liner and cheek pads feature brushed fleece Lycra touch points to absorb and evaporate perspiration - Chin strap features brushed fleece Lycra touch points for comfort and an adjustable strap end retainer - Rugged shield hinge hardware with robust detents allows you to open the shield at slow speeds for increased airflow - Molded recesses inside EPS designed to accept various aftermarket audio and communication components