The Aduro 2.1 is a helmet for ambitious bikers. With its intelligent features, perfect fit and high standards of absolute safety, the Aduro 2.1 is always the right choice for cycling.This helmet is at home everywhere; whether on the wide country road or on the demanding trails in the woods and mountains. Maximum comfort, optimum ventilation and perfect safety are guaranteed.Technology:In-Mold for a durable connection with the outer shell with shock-absorbing helmet material (EPS)High visibility due to bright reflectorsFoamed-in fly netsPonytail compatibility: Helmet well suited to plait wearersExcellent ventilation with 3 air inlets and 10 air outlets connected with flow channelsZoom Ace: Finely adjustable adjustment system with handy adjustment wheel for customisable fitSize adjustment via a solid ring made of 2 plastic components for optimum stability and positive fit