Nike Free 5.0 Trainers - BlackBAREFOOT-LIKE COMFORTThese stylish black Nike Free 5.0 Men's trainers are designed with Flywire cables that wrap the foot and adapt to your stride so you can enjoy ultra light support and run the way you want to.Enjoy natural flexibility and a barefoot feel with every step with the deep hexagonal flex grooves in the Nike Free midsole. Benefiting from no-sew overlays throughout, these Nike Free 5.0 Men's Trainers will give you total support with no added weight.Benefits of these Nike Free 5.0 Trainers*Lightweight woven mesh upper for breathability*Flywire technology for ultra-lightweight support*Nike Free Phylite midsole doubles as an outsole for lightweight cushioning, durability and reduced weight*Deep hexagonal flex grooves for a natural, barefoot-like ride*No-sew overlays throughout provide support and durability without added weightNike 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. Now you can benefit from all this research and enjoy the perfect running shoe for you.