The Puma Fusion Crush Sport is constructed with a FUSIONFOAM midsole, featuring a mix of super soft EVA foam and ultra-responsive rubber that provides unrivaled energy return and cushioning for all day comfort. The ENR outsole offers traction to keep the foot grounded while the breathable mesh upper helps keep the foot free from sweat build up. The upper features waterproof construction and comes with a 1 year waterproof warranty.