Designed specifically for fine loose gravel, the Terreno T30 features a low profile, densely packed octogon tread with stepped height knobs on the shoulders Anti-puncture belting beneath the tread paired with additional sidewall and bead protection for reduced chances of back road flats Endurance formula, Graphene infused compound developed for maximum durability, grip and longevity 100 TPI endurance casing made specifically for gravel riding to be durable yet supple and responsive.