NIKE Free 5 PS Youth Running Sneaker (1 Little Kid M, Grey/Peach) The Nike Free 5.0 2015 is an updated version of the classic Nike Free. features that keep your ride smooth and comfortable. Deep hexagonal flex grooves that extend to the midsole for natural flexibility. Flywire cables wrap the foot for a locked-down feel that adapts as you run. Lightweight woven mesh upper offers breathability. No-sew overlays throughout provide lightweight support.