Directional tread profile for quiet running and low rolling resistance Directional tread profile for quiet running and low rolling resistance Equipped with K-Guard, Schwalbe`s entry level puncture protection Green compound is made from renewable and recycled materials Twin Skin - An additional rubber coating on the side protects against cuts and allows for uniform coloring GRN - A rubber compound made of renewable and recycled raw materials KGRD - Layer from natural rubber, reinforced with KevlarÌÎÌ_ÌÎ_ÌÎÌ__ÌÎÌ_Ì´åÇÌÎå«ÌÎÌÊÌÎÌ_ÌÎ_ÌÎÌ__ÌÎÌ_ÌÎ_ÌÎÌ__ fibres. The protection standard for every tire from the Active Line