Designed for sprints and short runs, this performance-knit running shoe packs easily and looks great with street clothes so it's always ready to run with you. The spandex-infused Flyknit upper is engineered with an open weave at the sides for ventilation and cooling, while integrated Flywire cables link the lacing to the sole for a comfortable, stay-put fit. Innovative multi-direction flex grooves in the tread move naturally with your foot for a lightweight, barefoot feel from every heel strike to every toe-off. Style Name: Nike Free Rn Flyknit 2018 Running Shoe (Women). Style Number: 5599337 4. Available in stores.