Free Powerlines II Ltr Coal/grey

The Nike Free Powerlines+ 2 LTR Men's Shoe features a combination mesh and molded synthetic upper material for lightweight breathability and comfort. Deep flex grooves deliver a flexible, barefoot-like ride.

NIKE 599476-003 FEATURES
- Nike Free construction for more natural movement and an extraordinary feel
- Mesh and synthetic upper mixed with Nike Flywire technology for breathable comfort and ultralight, ultra-strong support
- Deep flex grooves along the outsole for flexibility and natural range of motion
- Molded sockliner conforms to the shape of the foot for comfort and support

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 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.