FLY RACING YOUTH KINETIC THRIVE HELMET PINK/BLACK/WHITE YL - 73-3504YLDOT approved Durable and lightweight polymer shell Dual density EPS (Expanded Polystyrene) liner Custom molded rubber trim with integrated nose guard Removable and washable comfort liner and cheek pads absorb sweat while providing ventilation All FLY helmets have TFV (True Functional Ventilation). When in motion air is forced through multiple air intake vents, then passed through aligned vent channels in the EPS and exits out multiple rear exhaust