Vittoria Terreno T10 Hardpack Tire 700 x 40, Tubeless, Folding, Black Brown, Gravel Endurance, Graphene, G2.0 pc [Inner Jacket] Heatseeker™ Eco Synthetic [Inner Jacket] Heatseeker™ Eco Synthetic Insulation Is Made With Hollow Core Fibers For Added Warmth 82% plastic in the construction process and is the world’s first responsibly designed and fully integrated impact protection technology reinforced with a nylon sidewall protection layer and an anti puncture belt to ensure maximum reliability and peace of mind Ideal for riders who spend most of their time on pavement or hardpacked gravel but want a tire that can handle occasional detours with confidence