When it is time to go fast, it's time to bring out the Diadora Frequenza 2.Made for tempo and speed workouts, this shoe will enhance your performance and keep a spring in your step. Light as a feather, the Frequenza 2 provides propulsion throughout your run. Details: Upper: A redesigned upper made of nylon air mesh and microfiber keeps the Frequenza 2 lightweight and breathable.Midsole: Achieve peak propulsion with ANIMA N2, Diadora’s groundbreaking compound that boosts midsole rebound by 40% while cutting weight by the same percentage.Outsole: Soft rubber in the front part and Special Duratech 5000 wear-resistant compound across the entire foot area to keep you running strong.