The Nike Joyride Dual Run blazes its own route. Tiny foam beads underfoot combined with traditional cushioning in the forefoot give an incredibly smooth feel that conforms to your foot. Small foam beads are contained in 2 compartments under your heel and midfoot. They conform to the shape of your foot for a stable feel. Light, durable foam cushions your forefoot to promote smooth transitions. Mesh wraps your foot in lightweight support. It lets air flow freely for cooling comfort.