Nike Men's Air Zoom Terra Kiger 3 Running Shoes synthetic-and-mesh Flymesh upper for lightweight breathability and support Inner-sleeve construction offers a comfortable, sock-like fit Dynamic Fit system with Flywire cables provides midfoot support and lockdown Phylon midsole with Zoom Air units in heel and forefoot for responsive cushioning Rubber perimeterin Waffle outsole provides multi-surface traction and durability