Carrying System: Arcuate Shoulder Strap and can serve as a Big luggage backpack outdoor shoulder bag Lining Material: Polyester with a Vintage style Pattern Type: Solid Multiple Color: Khaki, Army green, Black. M size: 45cmx26cmx20cm(HxLxW) or 17*10.23*7.87 inches L size: 55cmx30cmx20cm(HxLxW) or 21*11*7.87 inches