Nike Free

I bought a pair of Nike Free 4 trainers. Feel like running on barefeet and not much cushion when running on the treadmill but very good for Body Attack as there is more grip and pivot control.

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Nike Free is technology developed by Nike and incorporated into some of their atheletic shoes. Nike Free simulates barefoot running while wearing a shoe.

As this shoe allows the muscles in the foot to gain strength by providing less constriction, 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 true for amateurs, as Nike Free shoes do not provide as much cushion and shock absorption 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.

In 2007, Nike released a 3rd edition of the shoe, Nike Free V3, which is an update to the V2.

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About the Nike scale

The Nike shoe scale goes from 10.0 to 1.0 with a '10' being a fully supportive shoe, and '0' being completely barefoot.

Example: The 5.0 Nike Free is like running halfway barefoot, the 3.0 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 5.0 v3 (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 0 being barefoot.