The On-Running Cloudnova Flux trainers are a sleek new design from the renowned Swiss running experts. Made for day-long wear, the black sneakers have been engineered in breathable materials with a redefined outsole, providing superb performance when working out. Featuring double cloud heels for stability and an innovative half-length Speedboard for a smoother roll-through. The On-Running shoes are also made from 86% recycled polyester meaning they are a sustainable choice for the eco-conscious.