Safety standard CE EN 1385 - Injection-molded ABS shell * Front intake vents and multiple top-mounted exhaust vents * Ethylene Vinyl Acetate (EVA) protective inner foam prevents water absorption and provides greater comfort where high-impact EPS foam is not required * Absorption resistant front and back soft foam inserts for fit adjustment and detachable neoprene ear warmers * Quick-release chinstrap for one-handed operation