Bag Size: Medium Capacity: Below 20L Package Internal Structure: Zipper pockets, Mobile Phone Pockets, Document Pockets, Interlayer Zipper Pockets, Computer Pockets Opening Method: Package Cover Type Material: Top Layer Cowhide Leather With Lock: No With Or Without Rain Cover: None Processing Methods: Soft side Hardness: Middle Pattern: Pure Color Lining Texture: Polyester cotton Number Of Shoulder Straps: Double root Carrying Parts: Telescopic Handle Outer bag type: Inside Patch Pocket Bag Shape: Vertical Square Color: Brown Is there back cushioning cotton: Have Waterproof Degree: None Accommodates Computer size: 15.6 Inch Item number: MLBP-02