The A3 mountain bike helmet is a new standard in premium mountain bike helmets with luxurious comfort, patent-pending innovations in safety, ventilation that will you keep you cool on the longest climbs with comfort and coverage to protect on the sketchiest of descents.


  • Co-molded EPP and EPS for low and high-speed Patent Pending impact energy management.
  • B-Series MIPS Rotational Brain Protection system creates an optimal 360 degree fit that can maximize the safety features built into the A3.
  • Advanced layering 3-piece shell.
  • 3-Way Magnajust visor easily accommodates goggles
  • TLD Sweat Glide System.
  • 2-piece Ionic comfort liner for anti-microbial & sweat wicking properties that is also quick to dry.
  • 16 vents optimally tuned with the channeling of the helmet.
  • Premium 3d Fidlock magnetic buckle system and composite smart shear screws.