|description reviews fit
fit the nike free 3.0 v4 has a full inner sleeve made of mesh for a sock-like fit that hugs the foot yet still allows for easy on and off. the seamless, composite upper features larger perforations for more flexibility where it's needed and smaller ones in areas that demand more support.
flexibilityflex grooves along the length and width of the midsole enhance flexibility and help maintain stability, while diagonal grooves through the arch enhance flexibility and help increase foot strength. the low-profile midsole doubles as an outsole, dramatically reducing overall shoe weight.
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, just like 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 and flexible running shoe from the inside out.
benefitsnanoply engineered suede composite upper with laser perforations for strategic breathability and an adaptive fitphylite midsole/outsole for durability and lightweight cushioningmesh inner sleeve for a dynamic, sock-like fit rubber outsole with inserts in key areas for durability where it's needed mostseamless inner sleeve tongue for enhanced comfortdeep nike free flex grooves and transtarsal flex grooves through the arch for flexibility and to help increase foot strengthweight: 7.2 ounces (men's size 10)