adidas Running - AdiStar* Control W (Echo/Black/Metallic Silver) - Women's: Outsole with Ground Control System(tm), blown rubber and QuickStrike(tm) gives this shoe and incredibly smooth, even ride. Its new seamless, open mesh upper means a very comfortable fit. Open mesh nylon upper for best breathability and quick drying. GeoFit(tm) construction for anatomical fit and comfort. Full forefoot adiPrene(R) in midsole for forefoot propulsion and efficiency. ProModerator medial support device prevents overpronation. TORSION(R) SYSTEM for midfoot integrity. Ground Control System for motion control and ground adaptability. Forefoot blown rubber outsole combines light weight with grip. QuickStrike for best lightweight durability and flexibility. adiWEAR(R) outsole for best durability in high-wear areas.