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Nike Air Max 90 Womens Pink
« on: Jan 18th, 2017, 8:33pm » |
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Nike Free is a concept. Started around 2005, the idea was to create a shoe that is so flexible that leaves the foot completely free to move in the most natural Nike Air Max Thea Dame way.
Some people object that the Frees are still very cushioned shoes, therefore preventing the runner to have a true feeling for the ground below them.
While this might be true, the extreme flexibility of the Free sole unit, combined with very open-mesh and unconstrained upper make for a treat.
What do the numbers next to a Free shoe mean?
Nike abandoned the use of numbers in the Nike Free line in 2016, when they completely revamped the category.
Originally Nike Frees came in different versions, depending on how flexible Asics Gel Lyte 5 Donna they were. Their flexibility was ranked on a scale that goes from 1.0 to 10.0, where 1.0 means “bare feet” and 10.0 is a traditional running shoe.
In 201Nike Air Max 2016 Damen 6, with the coming of the new auxetic construction, the Nike Free range is completely new and the numbers are gone. We’ll go through the line and the models in a New Balance 574 Femme minute. Keep reading!
he new principle behind the Nike FREE line of running shoes is called “auxetic design”.
When your foot hits the ground, it expands both in Adidas ZX Flux Femme Fleurlength and width. Picture bouncing a ball on the floor: it squeezes and deforms because of the impact, then the opposite happens while it bounces back.
Nike engineers were looking for a way to design a midsole so that it would expand in both directions during the foot strike. The issue is that most materials, when stretched in one direction, become smaller in the perpendicular direction. Again think of an elastic band. If you pull it to stretch it long, it will most likely become narrower in the middle.
The auxetic Nike Air Max 90 Womens Pink design, characterized by the triangular cuts you see in the picture, allows the sole to do that. A stretch in one direction will equate to a stretch in the Nike Air Max Thea Femme other.
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