The One tire redone for gravel use features densely packed micro knobs and a round profileADX Addix compound found on the Performance Line made to serve as an all-around, well balanced compound for all usesRCGD - RaceGuard - A synthesis of special India rubber and several layers of nylon fabric offers very effective protection against penetration punctures while minimizing penaltiesDD - In addition to the RaceGuard protection belt there is an effective fabric protector on the sidewall as well for dual layer protectionTubeless27.5x2.8584TBLS - FoldBeltedBk/Bsk4584567DD/ADX/RCGD/EBIKE25NoUPC/EAN/GTIN: 4026495885362