Nike Free 5.0 Junior Shoe BREATHABILITY AND NATURAL RANGE OF MOTION The Nike Free 5.0 Boys" Running Shoe is made with breathable mesh and deep Nike Free sipes for a smooth, comfortable ride and maximum flexibility. Benefits Lightweight mesh with dynamic quarter creates a snug, flexible fit that moves with the natural motion of the foot Injected Phylon midsole for lightweight cushioning Deep Nike Free sipes for excellent range of motion and a natural, barefoot-like feel Reinforced outsole rubber on high-wear areas for durability Nike 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 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. Sizing is measured in US
