The Nike Jr. HypervenomX Proximo II Dynamic Fit Older Kids'Turf Football Shoe combines a sock-like upper with Nike Zoom Air cushioning to provide superb control and response during play. Synthetic and Flyknit upper with Dynamic Flywire cables provides an adaptive locked-down fit Dynamic Fit collar links the lower leg and foot without impeding motion Turf (TF) outsole with rubber studs for traction on synthetic surfaces Nike Zoom Air heel unit for responsive cushioning Flyknit Origins Nike Flyknit technology was inspired by feedback from runners craving a shoe with the snug (and virtually unnoticed) fit of a sock. Nike embarked on a four-year mission with teams of programmers, engineers and designers to create the technology needed to make the knit upper with static properties for structure and durability. Then the precise placement of support, flexibility and breathability—all in one layer—was refined. The result is a featherweight, form-fitting and virtually seamless upper.