Nike Free 3.0 Flyknit Men Round Toe Synthetic Running Shoe nike Color:Black The asymmetric Vapor traction pattern

The asymmetric Vapor traction pattern allows for instant acceleration and quick turns

Padded foam sockliner cushions and comforts

The clean design has an abrasion-resistant rip stop

Carefully Engineered Primeknit Every aspect of the Pure Boost has undergone meticulous design and re-design to deliver a shoe unlike any that has gone before

Nike Free 3.0 Flyknit Men Round Toe Synthetic Running Shoe nike Color:Black The asymmetric Vapor traction patternNIKE FREE ORIGINS After 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