Lightweight Offroad helmet for kidsShell constructed from thermoplasticShell constructed from impact resistant thermoplasticThree shell sizesMultiple density inner liner for enhanced impact absorptionPatented visor release systemPremium ventilation system featuring multiple inlets (18) and exhaust (10) ports for maximum airflowInternal hydration system compatibility: Elastic tabs in cheek pads to secure hydration system hoseEmergency Release SystemRemovable and washable interiors25 mm wide chin strapDouble D retention system18 % Polyurethane / 7 % Polyamide / 6 % Polypropylene / 4 % Fiberglass / 4 % Polyvinyl Chloride / 2 % Steel