Engineered mesh upper: A lightweight, breathable mesh material helps reduce the need for additional overlays. Full-length carbon plate: A responsive plate that guides your foot throughout each step and propels your foot forward helping you conserve energy. FF LEAP cushioning: Our lightest and bounciest material that’s 33% lighter and 13% more responsive than FF BLAST technology. FF BLAST PLUS cushioning: Midsole foam that provides a blend of cloud like cushioning and a responsive ride that is lighter than FF BLAST. ASICSGRIP outsole rubber: ASICS proprietary outsole that provides advanced grip on a variety of terrain.