Thank you for viewing! Nike Flex Runner 2 PSV Black 21cm Brand new, unused. *Please refrain from price negotiations. These sneakers combine breathable and stretchy synthetic fibers, synthetic resin, and rubber for a light and flexible feel. The sole has deep grooves to prevent slipping while running, and the stretchy slip-on opening and flexible sole provide a snug and comfortable fit. The slip-on design without shoelaces makes them easy to put on and take off. ▼ Pursues a light and flexible feel ▼ Stretchy slip-in design ▼ Leather is used on both sides to enhance structure and support ▼ Flexible foam sole ▼ Lightweight cushioning. Upper: Synthetic fiber/Synthetic resin Sole: Synthetic sole Thank you for viewing!