Materials and Construction: Durable 1680D POLYESTER fabric - WATERPROOF RAIN COVER with big size elasticated hems for a snug fit - EVA laminated semi-rigid panels help retain the bag’s shape, making it more stable on the tank - 5 MONOPOLE MAGNETS for a zero-displacement and hassle-free install and uninstall - Anti-scratch and anti-skid rubberised PU foam fabric on the base protects the tank and keeps it scratch free