Core Runner 5 Running / CORERUNNER 5 Running Whether you're on the track or on the treadmill, the adidas running shoe is ready to help runners running toward the goal. From the moment you put your feet on, you'll get the supportive yet soft feel of a cushioned Cloudfoam midsole. A dependable training shoe that combines a mesh upper that allows your feet to breathe, and a durable Adywear outsole for all-day wear. CORERUNNER 5