More comfort. More support. More sustainability. That's what you can expect from the Cloudrunner 2 Waterproof. Featuring a new waterproof upper, Helion superfoam and an outsole that won't collect stones, it will inspire you to run even further. A Helion superfoam midsole provides softer cushioning and higher energy return. An upgraded, plush tongue creates an easier, more comfortable step-in. With its high-performance waterproof membrane, it can weather rainy runs. A durable heel clip and added reinforcements help lock in stability and support.