99.9% Polyester Imported BRIM/GOGGLE VENTILATION: Allows hot air to flow unobstructed from the goggle through the brim ventilation for better anti-fog performance Modular brim system (MBS) creates seamless helmet and goggle integration and aids in goggle anti-fog performance In-mold outer shell with an EPS impact liner, and a removable, Machine-washable comfort liner 6 static vents help with temperature regulation, and non-pressure, around-ear ear pads have a slot for audio systems