Nutcase Sublime Water Helmet 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