Injection-molded ABS outer shell is rugged yet lightweightExpanded Polystyrene (EPS) liner dissipates impact loads and fortifies helmet structure for a secure fit without compromising comfortRemovable/replaceable comfort liner and cheek pads feature rushed fleece Lycra touch points to absorb and evaporate perspirationChin strap features brushed fleece Lycra touch points for comfort and an adjustable strap end retainerMolded recesses inside EPS designed to accept various aftermarket audio and communication components