. Product details ⢠Type of sport: running ⢠Flat heel ⢠Fastening: lace-up Fabric content & care advice ⢠Uppers: 100% fabric ⢠Lining: 100% fabric ⢠Cushioning: 100% fabric ⢠Sole: 100% rubber ⢠Type of runner: universal ⢠Weight of runner: any weight ⢠Running frequency: once a week ⢠Running distance: -10 kms ⢠Product benefits: comfort fit Offering the lightest barefoot feel, the Nike Free RN Flyknit 2018 shoe is ideal for short runs. A fitted upper hugs the shape of your foot, while the innovative insole allows your foot to fold & expand naturally. Collapsible, it fits easily into a backpack or tote for running on the go.