Nike comes back with their newest version of the 4.0 Flyknit trainer that is packed with a great deal of updates. This one’s deemed more flexible than the 5.0 and comes with more cushion than the 3.0 model. Its uppers are made out of a one piece polyester yarn layer to render an extremely convenient fit. It also has lightweight support and it has a 6mm difference between the ground and its inner sole. This feature is what makes the natural feel to the wearer’s feet.
In addition, it has the hexagonal flex grooves seen cut into its outsole and is wrapped right around its sidewalls. It is already made available via the Nike online store ($120).