In good pre-loved condition. Built for performance and agility, this ultra-lightweight training shoe features a stretchy upper bootie layered in engineered mesh for a custom, targeted fit. Integrated Flywire cables link the laces to the footbed for secure lockdown, while the ergonomically designed sole delivers flexibility that moves naturally with your foot along with responsive grip that keeps you connected to the ground whether you're cross-training or running sprints. Pull-on bootie fit with adjustable lacing Removable cushioned insole allows for custom orthotics Flywire cables integrate with the laces for secure, flexible lockdown at the midfoot Nike Free sole mimics the natural movement of your foot with every stride Tri-star flex grooves in the tread follow the biomechanic movements of your foot as you run Synthetic and textile upper and lining/rubber sole.