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Encyclopedia > Nike Free

Nike Free is technology developed by Nike, Inc. and Gerald Hartmann and incorporated into some of their athletic shoes. Nike Free simulates barefoot running while wearing a shoe. Nike, Inc. ... This article needs additional references or sources for verification. ... Walking barefoot Going barefoot is the practice of not wearing shoes, socks, or other foot covering. ...

As this shoe strengthens the muscles in the foot, runners are advised to gradually break into the shoe rather than immediately running long distances as to prevent muscle cramps and other discomforts. This is especially for amateurs as Nike Free shoes do not have as much cushion and shock absorbents as the traditional running shoes.

In 2006 Nike released a new version of the shoe, the Nike Free V2, that addressed some of the durability issues in the earlier model. Among other changes, the heel and sidewalls of the shoe were redesigned to prevent tearing.


About the Nike scale

The Nike shoe scale goes from 10.0 to 1.0 with a '10' being a fully supportive shoe, and '1' being completely barefoot.

Example: The 5.0 Nike Free is like running halfway barefoot, the 4.0 is even less shoe, and the 7.0 is a bit more supportive.

Versions of the Nike Free

  • Nike Men/Women Free 7.0 (running)
  • Nike Men/Women Free 7.0 Trainer (cross training)
  • Nike Men/Women Free 5.0 (running)
  • Nike Men/Women Free Trainer 5.0 (cross training)
  • Nike Men/Women Free Trail 5.0 (light trail running)
  • Nike Men/Women Free 5.0 v2 (running)
  • Nike Men/Women Free Trainer 5.0 v2 (cross training)
  • Nike Men/Women Free 4.0 (running)
  • Nike Men/Women Free 4.0 Trainer (cross training)
  • Nike Men/Women Free 3.0 (running)

Nike's numbering system is designed with a 10 being the average shoe and a 00 being barefoot.


  • Nike along with Tomy, a toy company, released product that consists of a pair of Transformers, Convoy (Optimus) and Megatron, that have their alt-modes as Nike Free 7.0.

Nike, Inc. ... TOMY Co. ... Since the initial conception of the Transformers in the late 1970s and early 80s, various stories have been written or imagined set in a universe where they exist. ... Convoy is the Japanese Equivalent of Prime. ... This article or section contains a plot summary that is overly long or excessively detailed. ...

External links

  • Nike Free @ Nike.com



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