1. A sturdy backpack with a very large capacity. 2. It has three large compartments, and one of them can hold a laptop. 3. It is very suitable for combat, sports, or daily use. 4. It is made of durable 600d polyester material, resistant to scratches and tears. 5. Due to the characteristics of nylon, the backpack is waterproof, and the inside of the material is coated with a rubber layer. 6. Foam inserts are used on the hips and back to prevent spinal injuries. 7. In addition, they are covered with breathable materials. 8. The materials used in the backpack dry quickly, are easy to clean, and are dust - proof. 9. The capacity is 45 liters. 10. The material is 600d polyester. 11. Dimensions: - Height: 51 cm - Width: 38 cm - Depth: 18 cm 12. It has three compartments. 13. The main compartment has a zipper, and there is an additional compartment. 14. The middle compartment is closed with a zipper. 15. The small compartment is closed with a zipper. 16. There are additional seams on the front and sides of the backpack. 17. There is padding on the back of the contents area. 18. The backpack has a two - way zipper and a buckle. 19. It is equipped with many sewn - on straps, so you can connect other devices. 20. It is a sturdy model based on American military backpacks. 21. There are two Velcro fasteners on the front. 22. The shoulder straps and all other straps are made of densely woven and durable nylon belts. 23. It provides an AIR - FLOW back ventilation system.