I use my Bolle Helix for cycling, and I am quite satisfied with their clarity and comfort. The TNS Fire lens not only look cool, but they provide good filtering without overly dimming, which is important when cycling to anticipate road hazards. Bolle also offers the TNS Fire lens in other models, such as the Bolt or Tempest, so you may have to try different ones, as I did, to find one that best fits you.