NIKE FREE 5.0 FLASH Racer Blue/Hyper Orange/Chalk Blue/Black

NATURAL RIDE, AMPLE REFLECTIVITY.

NATURAL STRIDE
Hexagonal flex grooves offer six points of flexibility to let your feet move naturally in every direction. Low-profile cushioning and a rounded heel encourage a more natural footstrike.
WATER-REPELLENT SUPPORT
The three-layer, abrasion-resistant mesh upper repels water while keeping your feet cool. Flywire cables integrated with the laces deliver added support and an adaptive fit.
ENHANCED VISIBILITY
Inspired by the natural beauty of the Northern Lights, the multicolor reflective upper enhances your visibility in low light.
MORE DETAILS
Full inner sleeve for breathable, seamless comfort
No-sew overlays provide support and durability without added weight
Solid rubber under the toe enhances traction and durability
Waffle outsole pistons absorb impact and add responsiveness
Weight: 6.6 ounces (women's size 8)
Midsole offset: 8mm
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 running shoe from the inside out.