High Sierra A.T. Gear Access 36 Drop-Bottom Wheeled Duffel - Black Dimensions: 36.0in x 20.0in x 14.0in Capacity: 6,588.0 cubic inches Materials: 1200 x 1800-denier Duralite, Duralite Ripstop, Reflective Accent Piping It's two bags in one! Use it as a wheeled duffel or wear it like a backpack. Hidden padded backpack straps are stored behind the zippered padded back panel.