AltRider DRYB-2-4200 SYNCH 14 Liter Small Dry Bag - Black Capacity: 14 Liters (perfect pannier topper) Made from 18oz waterproof and durable truckers tarp with military-spec neoprene on all anchor patches Tape-seam sealed construction for water and dust proof performance Wide-mouth roll-down opening with cinching straps, daisy chain(s) for extra gear lash-points and nylon D-rings for tie-down and stacking options Approximate stuffed dimensions: 17.5 x 9 x 7 inches (44.45 x 22.86 x 17.78 cm)