Road running, performance running, limited edition. Features: With reimagined lines and coloring for a street-ready look; Lightweight woven upper for next-gen speed and breathability; Ultra-responsive cushioning sensation with Helion™ superfoam; Inspired by our fastest shoe, the Cloudboom Echo; Irresistible forward-roll for picking up the pace; Spoon-shaped nylon-blend Speedboard® for speed; CloudTec® cushioning; With special-edition packaging. Materials: Recycled Polyester. You wanted speed. So we added a spoon-shaped nylon blend Speedboard® that's stiffer, stronger, and lighter than before. Added to a powerful forward roll to catapult you to new personal bests. Put simply, you'll feel it.. The Cloudflow 4 IKON is reimagined in a sleek new design that looks as good as fast feels. Drawn from contemporary sporty styling, the shoe features TPU layered lines and a shade-on-shade coloring method for street-ready wear plus race performance. Presented in special-edition packaging.