Nike Zapatos Mujer ULTIMATE MOBILITYDesigned for high-intensity workouts, the versatile Nike Free Cross Compete Women's Training Shoe gives you ultra-lightweight flexibility while providing essential stability and impact protection for quick movements like jumping and sprinting.BenefitsMesh and synthetic upper for breathability and a lightweight feelExposed Flywire cables provide dynamic support and lockdown at the forefootInjected unit sole doubles as the outsole for low-profile, lightweight cushioningHexagonal flex grooves offer six points of flexibility to let your foot move naturally in every directionStrategically placed rubber enhances grip and durability in high-wear zonesAggressive traction pattern at the forefoot enhances propulsion for sprintsProduct Details Soft molded foam collar and partial bootie create a plush, comfortable fitOffset: 3mmNike 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.