Ozuko 8983 Large Capacity Waterproof Travel Outdoor USB Shoulder Backpack 20 Inch(Blue)Project type: backpack Material: Oxford Decoration: button belt Gender: suitable for both sexes Closure type: zipper and clasp Material lining: polyester Capacity: 20 35 litres, 36 55 litres Rain cover: yes Model: 8983 style: fashionable Handle strap type: hard handle Interior decoration: shoe bag, inner compartment, computer interlayer, inner zipper pocket, inner groove bag, mobile phone bag Technique: embossing Color: black, gray, blue, camouflage