The WingBack from Abus has a minimalist design - and yet it hides some sophisticated functions under its winged design, including technologies from the performance helmets. The WingBack emphasizes its sporty character with deep ventilation channels, thin struts and a separation edge at the rear. The combination of polycarbonate (PC) and polystyrene (EPS) gives it a very light appearance, with a weight of just 250 g. The flutter-free FlowStraps webbing does not need a strap distributor. Excellent ventilation provided by 10 air inlets and 7 air outlets Forced Air Cooling Technology combines front and rear vents with deep channels for a cool head - plus air scoop (top) for the Venturi effect FlowStraps: aerodynamic, flutter-free and skin-friendly webbing In-mould design for a permanent bond between the outer shell and the shock-absorbing helmet material (EPS) Zoom Ace: finely adjustable, height-adjustable adjustment system with easy-grip adjustment wheel for individual fit Helmet fits well on ponytail wearers - height-adjustable adjustment system at the back of the head creates space for ponytails Half-ring: plastic ring half enclosing the head and connected to the adjustment system - enables size adjustment Specifications Rotational ProtectionNoHelmet CertificationsComplies with the U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and OlderMaximum Head Circumference61Gender/AgeAdultMinimum Head Circumference57ColorShiny WhiteSizeLargeVisor IncludedNoMulti ImpactNoWeight270Helmet StyleRoadHelmet StyleUrbanDefined ColorWhite