Ideal for runners new to Nike Free, the Nike Free 5.0 Solstice Black/Pure Platinum/Bright Citrus by Nike Running Shoe offers excellent lightweight cushioning and support while enabling a more natural running experience.Enhanced Movement / NIKE'S MOST CUSHIONED NATURAL RIDEHexagonal 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 BenefitsFull bootie construction for seamless comfortNo-sew overlays provide support and durability without added weightMolded sockliner mimics your foot's shape for added supportSandwich mesh tongue provides comfort and ventilationSolid rubber under the toe enhances traction and durabilityWaffle outsole pistons absorb impact and add responsivenessProduct DetailsWeight: 8 ounces (men's size 10)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.About the Solstice PackWinter here, summer there. Two halves of one planet, two halves of one pack. The Nike Solstice Pack celebrates this synchronous balance—the fact that the longest night of the year here is the longest day of the year halfway around the globe....The Nike Shoes more colors