adidas Response Trail 18 Womens Running Shoes Synthetic Breathable mesh upper for ventilation and comfort, with synthetic overlays for support and durability AdiPRENE+ insert in the forefoot maintains propulsion and efficiency whilst adiPRENE under the heel provides superior cushioning at impact TORSION SYSTEM allows for midfoot integrity, ensuring independent movement of the rear and forefoot while maintaining stability FORMOTION for motion control and optimum ground adaptation ADIWEAR rubber outsole offers the ultimate in high-wear durability and delivers excellent traction on tough and demanding off-road terrains