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 Kevlar� fibres. The protection standard for every tire from the Active Line Standard 20x1.75 406 Wire Belted Bk/Bsk/Ref 65 50 KGRD/GRN/REF YesUPC/EAN/GTIN: 4026495822589