Nike free running shoes were developed to allow the feet to move more freely. The natural movement of the feet strengthen the ankles and feet and improves flexibility. A stronger more flexible lower body enhances the persons athletic performance and helps to prevent injuries. These nike free run shoes have become very popular with runners because of the increased strength and better performance they bring about.

The nike free run 2 shoes are a style of barefoot running shoes, that is, they simulate going barefoot. The theory is that by going barefoot our body moves as it was naturally designed. The human foot has evolved over millions of years, by using shoes we alter the movement of the foot away from its natural movement as intended by evolution. The change of movement caused by shoes causes sprains, shin splints and other common foot injuries.

Runners are advised to break gradually into using nike free run australia shoes. Since the movement of the foot will be different from with other shoe styles there will be a period of adjustment and at first there could be some muscle cramps and other discomforts, especially if the new shoes are overused at first. As the foot adjusts to the new shoe style its use can be gradually increased. Overtime the runner should notice more strength and flexibility in the feet and ankles which should help with performance.

Starting with one style of nike free run 3 the line of shoes has grown to over twenty individual styles. Nike uses a combination of roman numerals, symbols and version numbers to identify the various styles of Nike free running shoes. Roman numerals are used to define the version or generation of the shoe, for example III would be the third generation. V means version, so V5 stands for version five of a particular shoe style. The shoes also have a unique Nike ID depicted by the symbol iD.

The improved technology of nike free 5.0 shoes allows runners to be more scientific with their workouts, which should lead to increased benefits from workouts and ultimately better performance as runners. The technology should continue to improve over time with new more advanced innovations that better simulate the natural movement of the feet and in turn continue to improve the performance of the runner.