This kind of Computer Backpack uses sturdy materials and heavy-duty rubber bottom to keep this backpack upright, allowing you to easily put on and take off. Its design is in line with the ergonomic concept, and mesh shoulder straps and airflow technology provide excellent back support and all-day ventilation. It is also equipped with multiple tool slots and pockets, allowing you to quickly access hammers, drills, nails and other work supplies. In addition, the Computer Backpack has the properties of delicate design, waterproof, wear resistance, tear resistance, durability, large capacity, reasonable price as well as high cost effective. It is suitable for carpenters, repairmen, plumbers, electricians, etc. It is highly praised by our clients around the world because of high quality.