~Terrex says~ 

Experience a blend of comfort, durability, and stability. A breathable upper helps keep your feet feeling cool. The all-new softer Lightstrike midsole is engineered to deliver a cushioned and dynamic ride that can handle the impact from every step on the trails. With the Agravic 3 you can run every trail confidently with a Continental™ Rubber outsole with 4mm lug profile, providing reliable grip in dry and wet conditions.