The Nike Free Flyknit 4.0 Men's Running Shoe continues the tradition of Flyknit with a woven upper that conforms to the foot for breathable, lightweight comfort with each stride. Flywire cables deliver support without extra weight, while the flexible Nike Free midsole/outsole gives you natural range of motion over any distance.Benefits*Flyknit upper for ultra-lightweight support and breathability*Flywire cables for lightweight support and an adaptive fit*Knit-in ventilation holes at the quarter panel for enhanced breathability*Nike Free midsole with hexagonal flex grooves for multidirectional flexibilityFlyknit OriginsNike Flyknit was inspired by feedback from runners requesting a shoe with the snug (and virtually unnoticed) fit of a sock. Nike embarked on a four-year mission with teams of programmers, engineers and designers to create the technology needed to make the knit upper with static properties for structure and durability. Then the precise placement of support, flexibility and breathability all in one layer was refined. The result was a featherweight, form-fitting and virtually seamless upper.Nike Free OriginsAfter learning that Stanford athletes had been training barefoot on the university's golf course, three of Nike's most innovative and creative employees set out to develop a shoe that felt natural and weightless, similar to bare feet. In 2002, they examined a group of men and women with pressure measuring insoles taped to their feet, using high-speed cameras to capture images of each foot in motion.The team spent eight years studying the biomechanics of shoeless running. The results yielded a profound understanding of the foot's natural landing angle, pressure and toe position, allowing Nike designers to build an unconventional and flexible running shoe from the inside out.
- Attached Nike Flyknit tongue with notches for easy entry
- Minimal sockliner molds to your foot's curvature for added support and comfort
- Non-stretch, knit-in heel for structure and support
- Asymmetrical lacing for reduced lace pressure on the top of your foot
- Waffle outsole lugs help absorb impact and add responsiveness
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