- Complies with Dutch standard NTA 8776 for electric bike helmets - The design ensures that the goggle strap does not block the ventilation channels * Various sizes available. Select the size you want from the drop-down menu. - Compliant with Dutch standard NTA 8776 for electric bike helmets - The design ensures that the goggle strap does not block the ventilation channels * Various sizes available. Select the size you want from the drop-down menu. All products sold by Ridewill are NEW and have a guarantee, unless otherwise specified, of: 24 months for Individuals (Tax receipt) for lack of conformity according to the law. 12 months for companies (Accompanying Invoice with VAT number) in accordance with the law All products sold by Ridewill are NEW and have warranty unless otherw.