Cruise the concrete in this ultrasoft road running shoe. With CloudTec Phase® cushioning for a smooth ride and seamless heel-to-toe transition. Key features: Weight: 245g CloudTec Phase® technology for noticeably active cushioning Computer-optimized midsole for our smoothest ride yet Made from 30% recycled materials while using less plastic Dyed using water-saving dope dye technology This is CloudTec Phase™ For an adapted and specialized version of our signature CloudTec® technology, we left nothing up to chance. Using Finite Element Analysis (FEA), we simulated how each component of our prototype reacts while running. Using invaluable insights from this method, we created the optimal midsole for a seamless weight transfer from heel to toe. It's called CloudTec Phase® and it introduces a new age of cushioning. But why Phase? In CloudTec Phase®, the computer-optimized Clouds seamlessly collapse like dominos when your foot lands. The result? Supreme, enhanced cushioning, and a softer, smoother transfer from heel to toe. Less plastic, less water We're not riding the sustainability wave – we're creating our own. To save on water, the Cloudsurfer's yarn is colored using a dope dyeing process that requires 90% less water than standard techniques. We've also ditched the plastic overlays and bumped up the shoe's total recycled content to 30%. On Running Cloudsurfer