Asics Sonicblast - Women'sThe SONICBLAST shoe offers a lightweight and responsive ride that makes it functional for tempo runs and your daily training. The midsole features a two layered foam with FF BLAST MAX and FF TURBO cushioning to help create a lightweight, bouncy, and advanced cushioning running experience. Additionally, an ASTROPLATE propulsion mechanism is centered in the foam. This helps propel your momentum forward, creating a faster feel underfoot.