Just like the Premier Vintage, the Le Petit U9 BM is made from a high-quality 3-component mix of Dyneema, Carbon and Aramide (DCA). An antibacterial and removable inner lining ensures that you can keep the inner lining fresh for a long time. Premier managed to keep the circumference of the outer shell very small by omitting the visor. With a small 81 cm you will not come across them smaller. And ECE approved!