The Axiom Appalachian is a one piece double sided saddlebag style pannier for budget minded commuters.Water-resistant 600 denier nylonReflective trimEasy elastic attachment systemSelf repairing zippersOne-piece, double sided designThe high level fabric used in all Axiom bags has exceptionally low off-gassing characteristics (open up a bag and you notice it doesn"t smell like plastic or chemicals!) that exceed even European standardsItem SpecificationsColorBlackTotal Volume1220in3