The Cielo X1 2.0 is the perfect shoe for distances up to and including the marathon, but also for long endurance runs at a high pace. The shoe when you are going to run the holy 42 kilometers! Midsole Double-layer PEBA foam forms the midsole of this shoe. PEBA foam is a thermoplastic elastomer made from polyether block amide (PEBA). With its unique properties, PEBA foam is very suitable for uneven paths and still offers a high energy return. Compared to TPU foam, this foam is considerably lighter, offers better energy return and maintains its performance in all temperatures. The model delivers the speed you need thanks to the full-length carbon plate. The plate provides extra stability and also gives forward propulsion. Upper Thanks to the jacquard mesh upper with textured yarns, the shoe is highly breathable and allows sweat to escape, keeping your feet cool while running. Because the mesh follows every shape of the foot, it offers comfort and support. Outsole The shoe has a rubber outsole and offers good grip and traction while running.