DOT/ACU approved. ECE approved internationally. Durable and lightweight polymer shell Dual-density EPS (Expanded Polystyrene) liner Custom-moulded rubber trim with integrated nose guard Three shells and four EPS sizes provide a precise fit. 1342 grams +/-25g (size LG) 2.95 pounds +/- 0.06lb (size LG) Removable and washable comfort liner and cheek pads absorb sweat while providing ventilation. True Functional Ventilation (TFV)-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 vents. High-flow mouthpiece is replaceable. Included soft fleece helmet bag.