If you are starting out BMX riding, or you just like getting around in this style of lid, the Fox Flight Sport helmet is a great entry level option in the Fox BMX/dirt jump range. A single density layer of EPS (Expanded Polystrene) which is simply, the foam used in the helmet combined with the proven ABS hard outer shell inspires confidence for riders of any age and experience level. KEY FEATURES Dirt jump and trail specific functionality. Single density EPS liner Thin ABS shell for reduced weight. 8 large Big Bore vents for increased airflow and lighter weight. Heat sealed comfort liner for a clean look and feel.