Ramped center knobs for a smooth fast ride while the shoulder tread features U-shaped knobs for corner traction. Bred for gravel adventures and dirt road cross trekking. DC - Dual Compound two compounds comprised of a harder longer lasting center and a softer gripping corner. EPS - Exceptional Puncture Safety offers an added layer of proprietary rubberized poly-fiber material between the tread and the casing to help prevent punctures