Men's NIKE FREE RN 2017 Black/Dark Grey/Anthracite/White

LIGHTWEIGHT, LOW-PROFILE FLEXIBILITY./ LIGHTWEIGHT BREATHABILITY
Single-layer knit material is soft and breathable to help you stay cool from your first mile to your last.
ADAPTIVE FIT
Dynamic Fit technology wraps your foot for a secure, locked-down feel. Flywire technology – strong, lightweight cables – integrate with your laces for additional arch support.
FLEXIBLE COMFORT
The lightweight, low-profile Nike Free sole flexes with your foot for a comfortable, natural ride.
MORE DETAILS
Minimal tongue design enhances breathability on top of the foot
Insole conforms to the shape of your foot for complete comfort
Rounded heel lets you move naturally
Targeted rubber at the toe and heel for traction
Weight: 8.4 ounces (men's size 10)
Offset: 8mm
NIKE FREE ORIGINS
After learning that Stanford athletes had been training barefoot, 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 four 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.