Cadomotus Sigma-II Aerodynamic bicycle helmet

  The performance bicycle helmet is so compact, light and comfortable you'll forget you're wearing one! The Sigma-II features our...   The performance bicycle helmet is so compact, light and comfortable you'll forget you're wearing one! The Sigma-II features our race-proven magnetic snap system that allows quick attachment and removal of a visor. Our system makes it easy to store the lens in the "folded" position - perfect for quick swim-bike transitions in triathlon. The new "hidden" magnets in the helmet are fully compatible with SKY or A2 lenses, which we developed for the Omega and Alpha Aero helmets. The integrated visor is an option you can purchase separately, for those athletes who do not already have an Alpha-2 or Omega helmet with visor. 3 reasons to wear a Cadomotus Sigma-II helmet Sigma-II follows the latest design trends in helmets; with a robust and compact shape and aerodynamic geometry. Sigma-II keeps your head cool thanks to extra large ventilation channels, even in the highest temperatures Sigma-II allows you to use an aerodynamic visor, perfect for triathlon or glasses-wearing cyclists. On Sigma-II helmets, our SKY lenses fit. Higher quality visors, such as 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.