adidas Running - a3 Cushion W (White/Flamingo/Metallic Silver/Vivid Green) - Women's: Lightweight training shoe featuring the a3 cushioning system in the heel for a fast, responsive ride. Mesh nylon upper combines light weight and breathability. Inlay features molded EVA insole for anatomical comfort. TORSION® SYSTEM midsole for midfoot integrity. Heel a3 for optimized energy use throughout footstrike.