Directional tread with smooth center section and micro-knurled shoulders for a quiet running tire with low rolling resistance perfect for road and trekking useGreen compound is made from renewable and recycled raw materials Twin Skin - An additional rubber coating on the side protects against cuts and allows for uniform coloringKGRD - Layer from natural rubber, reinforced with Kevlar® fibres. The protection standard for every tire from the Active LineStandard700x40622WireBeltedBk/Bsk/Ref8570550TWN/KGRDYesUPC/EAN/GTIN: 4026495985147