Engineered mesh upper: A lightweight, breathable mesh material helps reduce the need for additional overlays. ASTROPLATE technology: Helps propel your stride forward FF BLAST MAX cushioning: One of our most energetic midsole foams that's complemented with cloud-like softness and a responsive energy return in each step. FF TURBO² cushioning: Our pinnacle FF TURBO foam that's the bounciest and most energetic midsole material, helping provide ultimate cushioning and rebound for your run. ASICSGRIP outsole rubber: ASICS proprietary outsole that provides advanced grip on a variety of terrain.