Ideal for runners new to Nike Free Shoes, the Nike Free 5.0 Light Aqua/Light Retro/Green Glow/Black of Women's Running Shoe offers excellent lightweight cushioning and support while enabling a more natural running experience.NIKE'S MOST CUSHIONED NATURAL RIDEEnhanced MovementHexagonal flex grooves offer six points of flexibility to let your foot move naturally in every direction.Natural StrideWith an 8mm offset between heel and forefoot height, the Nike Free 5.0 features a low-profile midsole and a rounded heel to encourage a more natural footstrike.SupportThe engineered mesh upper provides the comfort and fit you'd expect of a traditional shoe, conforming to the shape of your foot to support you as you move. Flywire integrated with the laces delivers added support and an adaptive fit.More Benefits Full bootie construction for seamless comfort No-sew overlays provide support and durability without added weight Molded sockliner mimics your foot's shape for added support Sandwich mesh tongue provides comfort and ventilation Solid rubber under the toe enhances traction and durability Waffle outsole pistons absorb impact and add responsivenessProduct Details Weight: 6.55 ounces (women's size 8) Midsole offset: 8mmNIKE 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 running shoe from the inside out....The Nike Shoes more colors