Breathable backpack system: The rear ventilation system can quickly withdraw heat, stay dry, and enjoy cycling.Adjustable shoulder strap, ergonomic shoulder strap, not easy to slip, protect the cervical spine.Front, side pockets provide more spaceCan accommodate 14-inch laptops, A4 magazines, books, clothes, mobile phones, etc.Material: PULining texture: polyesterOpening method: zipperColor Classification: Camouflage Blue, Camouflage Army GreenInternal structure of the bag: computer pocket, inner zip pocket, 3 inner pocketsPortable, shoulder-mounted, two styles can be switched at will, two-way zipper, shoulder strap reinforcement, strong load capacity, long-term use and longevityUse range: daily use for business, travel, school, vacation, shopping, etc.Note: The picture shows the charging treasure, the data line is not given, you need to bring your own.