

I've never raced in these personally to agree or disagree but any of these carbon fiber shoes feel significantly different to run (or walk) in compared to daily trainers. These tend to sound louder with each foot strike apparently.

I know several elite and sub elite runners who prefer the Vaporfly over these, however. In addition to an efficiency boost from the shoe, if you FEEL fast in these shoes then there definitely could be a placebo effect by wearing the shoes that very likely could improve your performance as well. However the studies do show that on average, it does improve running efficiency similar to the Vaporfly 4% (shown to improve running EFFICIENCY but not marathon times by 4%). Unfortunately, I would say these will assuredly not improve your running pace by 20-30 seconds per mile in a marathon. Just remember they wear out fast - you may get 3 races out of them so don't expect to use for training. The midsoles feature lightweight responsive Nike React foam plus Air Zoom units in the forefoot and heel for improved energy return. The Pegasus 39 incorporates breathable mesh uppers with padded tongues for superb comfort plus moisture and temperature management. Mesh details throughout promote ventilation.For marathons, these are great and very popular in the running community as you could easily see a 10-15 minute improvement. Power up your run with the Nike Air Zoom Pegasus 39 mens running shoes. READY FOR SPEED A translucent upper has the look of speed and is made to help your foot while you run.

More lightweight up top than the Pegasus 38 and ideal to wear in any season, it has a supportive sensation to help keep your feet. Let the Nike Air Zoom Pegasus 39 help you ascend to new heights, whether youre training or jogging, with its intuitive design.
