A trainer so light, it feels like running barefoot. Introducing the women's Free RN 2017 trainers by Nike. Light on your foot, heavy on the technology, with single-layer knit material soft and breathable to help you stay cool. Dynamic Fit technology wraps your foot for a secure, locked-down feel while Flywire technology gives additional support. Targeted rubber at the toe and heel gives extra traction to let you concentrate on your workout. Finished with the iconic Nike swoosh to the side.. Material: Leather & Textile Upper/Synthetic Sole