Women's Shoe Nike Free TR Focus Flyknit 844817-302

Benefits
Flyknit upper offers breathable flexibility
Flywire cables in the forefoot provide dynamic lockdown
Tri-star outsole pattern expands and contracts with every step for natural comfort
Injected unit sole doubles as an outsole for lightweight comfort

Nike Free Origins
After learning that Stanford athletes had been training barefoot on the university's go-lf 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. The team spent eight years studying the biomechanics of runners' feet in motion. 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.