adidas Adizero Ace 7 Running Shoes - SS15 Engineered Coolever Mesh Upper - Delivers lightweight breathability and moisture management. Synthetic Tirrenina Suede Overlay - Provide lightweight support and stability in the the upper construction. Boost Foam Technology - Revolutionary midsole compound technology that yields increased bounce back and comfort. Moulded Eva Sockliner - Adapts to the foot and delivers supreme comfort and support. Torsion System - Corrects unwanted flex, creating a clean and efficient gait cycle.