18 oz waxed duck canvas. 9 oz USA harness leather. Antiqued brass zipper. Solid brass and copper hardware. Roll top closure. Wool padded straps. Width 13″ at the mouth of the bag tapering down to 10.5″ at the leather bottom. Height 22.5″ when open, 17.5″ when closed. Depth 4.5″. Front Pocket 9″ W x 6.5″ H x 2″ D. Side Pocket 3″ W x 5.5″ H (perfect for pens). Inside pocket 10″ W x 12″ H.