Adidas Questar Cushion 2 Women's Running Shoes Air Mesh Upper - Giving your feet maximum breathability and helps to reduce overall weight. Synthetic Overlay Materials - For added comfort, extra flexibility and acts as an upper support for your feet. adiPRENE+ in the forefoot - maintains propulsion and efficiency, giving you the bounce off your toes that you need. TORSION System - This provides midfoot integrity with the lightweight high-rebound midsole compound for a fast efficient transition. Molded responsive EVA sockliner - for anatomical fit and great step-in comfort.