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 Standard 700x42 622 Wire Belted Bk/Blk 75 480 60 DC/EPS NoUPC/EAN/GTIN: 6933882518841