The GEL-CUMULUS™ 25 is a versatile, neutral trainer offering a lightweight cushioning experience for the fast, efficient runner or a beginner runner who covers shorter distances, less often. A lightweight Engineered Mesh upper material is designed to create a unique balance of comfort, breathability and fit while providing support the runner needs without additional overlays. FF BLAST™ PLUS midsole foam delivers a lightweight, energetic ride while the encapsulated PureGEL™ is positioned at the rearfoot for added shock attenuation and improved underfoot feel. The full ground contact outsole geometry creates a stable platform when you are in contact with the ground.