Cadomotus Sigma-II Aerodynamic bicycle helmet

 Cadomotus Sigma-II Aerodynamic Cycling Helmet The performance cycling helmet is so compact, light, and comfortable you forget you're wearing one!...  Cadomotus Sigma-II Aerodynamic Cycling Helmet The performance cycling helmet is so compact, light, and comfortable you forget you're wearing one! The Sigma-II features our race-proven magnetic click system allowing quick attachment and removal of a visor. Our system makes it easy to store the lens in the "flipped-up" position - ideal for fast swim-bike transitions in triathlon. The new 'hidden' magnets in the helmet are fully compatible with SKY or A2 lenses, developed for the Omega and Alpha Aero helmets. The integrated visor is an optional purchase for athletes who don’t yet have an Alpha-2 or Omega helmet with visor. 3 reasons to wear a Cadomotus Sigma-II helmet  Sigma-II follows the latest helmet design trends; featuring a robust, compact shape and aerodynamic geometry. Sigma-II keeps your head cool with large ventilation channels, even in the highest temperatures. With Sigma-II you can use an aerodynamic visor, perfect for triathlon or glasses-wearing cyclists. Our SKY lenses fit the Sigma-II helmets. Higher quality visors, like Cádomotus SKY lenses, taper and correct the prism effect for more accurate vision. Approved for racing by UCI cycling, World Skate (FIRS), and ITU triathlon.