KNOG The Boxxer Rackless Bicycle Pannier/Backpack (Black/Brown) 2008 Knog Boxer Rackless Pannier/Backpack Bag Black Water Resistant 1200D fabric with taped and sealed seams outside, waterproof tarp on the driveside. Water sealed zippers and heavy duty hardware Padded carrying handle, converts to backpac Padded 15.5" laptop case, multiple internal organizer pockets / 370 x 510 x 150mm Total Volume: 1727 in3