A quick trip on your e-bike for shopping in the city, to meet friends or to go to work: as an NTA certified helmet, the PURL-Y is particularly suitable for riding on e-bikes and S-pedelecs. Official NTA 8776 E-Bike Certified Protects against impact at higher speeds, ideal for e-bike riders Size Chart: Small (51-55cm), Medium (54-58cm), Large (57-61cm) * Tested and Officially Certified to NTA 8776 E-Bike Helmet Standards * In-mould design for a durable connection with the outer shell with shock-absorbing helmet material (EPS) * Size adjustment via a full ring made of 2 plastic components for optimum stability and positive fit * Certified in accordance with NTA 8876 for e-bikes and S-pedelecs * Ponytail compatibility: the helmet is very suitable for riders with a ponytail * Removable peak * Light optionally available * Removable and washable padding with maximum wearing comfort * Integrated fly net * Zoom Ace: precise adjustment system with non-slip adjustment wheel for individual fit * Journeys through the city in everyday life: leisure, shopping, commuting * Also suitable for e-bikes and S-pedelecs thanks to NTA certification Official NTA 8776 E-Bike Certified Protects against impact at higher speeds, ideal for e-bike riders