Run smooth. Feel faster. The Cloudsurfer Next adds forward roll to soft CloudTec Phase™. So every run feels effortless. Materials & Transparency Materials Upper Unit: Recycled polyester, TPU / Bottom Unit: Outsole: Rubber / Speedboard: None / Technology: CloudTec Phase ® Key features - Helion™ superfoam midsole for a bouncy and responsive ride - CloudTec Phase™ cushioning for smooth heel-toe transitions - Lighter engineered woven upper inspired by our race-day shoes - Agile forefoot rocker for a more propulsive toe-off - Easy step-in accommodates a wide range of foot shapes - Rubber pads on the outsole for grip and durability - Effortless yet dynamic running sensation - Silhouette inspired by our pinnacle race-day shoes