Used Nike Superfly R4 Track Spikes - Size: M 9.5 (W 10.5) | SidelineSwap
Nike Run Club - The Nike Volt Sprint Spike collection. The Nike Zoom Superfly R4, at left, fuses Nike FlyWire with an ultralight spike plate. | Facebook
Nike Zoom SuperFly R4 Sprint Running Track Spikes Black Green Chrome 12 Mens | eBay
Nike Zoom Superfly R4 Mens Track Spikes | FirsttotheFinish.com
Nike Zoom Superfly R4 Mens Track Spikes | FirsttotheFinish.com