Nike Free RN Flyknit Men's Natural Running Shoes Blue/Fluo Orange

Details:
Weight: 227 grams (men's sizes 10 US - 44 EU) 
Drop: 8 mm

Upper Flyknit single seam for a snug fit and natural fitting 
Fitting tongue in pierced fabric for excellent breathability 
Flywire cables for a snug and secure fit 
Inserts in full rubber under the toe and heel for durability and traction 
Nike Free midsole that expands in multiple directions through the three crosses pattern 
A new soft foam midsole for cushioning comfort and lightness 
Strategic areas of high breathability, flexibility and resistance 
Outsole with flex grooves for a smoother ride, natural and immediate

Flywire
Flywire helps provide ultra-lightweight support and comfort for your foot. It gets its strength from thin nylon fibers strategically placed on the upper of the shoe to hold the foot in place, helping to reduce slippage during activity. This allows for a massive reduction in weight because material is used only where it’s needed.

Free
Nike Free are different from traditional athletic shoes. They’re designed to let your feet move much more freely and naturally, which means your muscles will be doing a bit more work than demanded of them in some other athletic shoes.

Flyknit
It uses a knitted upper construction process that increases support for a comfortable, custom fit. Seams, weight and friction areas are all reduced. Polyester yarn is more open in areas that need more flexibility and tighter in areas that require more support. Nike Flyknit also eliminates the need for multiple materials used to make traditional shoe uppers, significantly reducing pollution.