Scalable Large Capacity Backpack, Casual Breathable Waterproof Oxford School Bag with USB Port for Men, Work Travel Flight Business 15.6" Laptop, Pure Black

Features: 1. Two-way zipper design, thickened and polished, wear-resistant and bright. 2. Comfortable portable stronger bearing capacity and durable. 3. Shoulder strap adjustment buckle, you can adjust the shoulder strap at will according to your own needs. 4. The bag is reinforced with a triangular design, and the shoulder strap is strong and not easy to be damaged. 5. The bag fabric is soft and comfortable, with fine texture, scratch-resistant, and wear-resistant. 6.Thickened handle design, easy to carry. 7.USB interface, convenient charging. • Capacity upgrade: The back can be expanded and thickened by 5cm, which can easily increase the capacity of the backpack. It can carry a 15.6-inch computer and daily belongings to easily improve travel efficiency. • Specifications: Dimensions are 30*45*19cm/11.8"*17.7"*7.5".Lots of pockets and laptop sleeves make your personal stuff well organized. This backpack is large and durable, which is perfect for College, travel, business, and everyday use. • Multi-layer space: Internal computer compartment + iPad compartment, easy to carry items. The multi-layer zipper bag design of the backpack is convenient for the classification and carrying of various personal items. • USB charging interface: The backpack has a built-in charging data cable and an external charging port; the mobile phone can continue to last. • Trolley case fixing belt: The back fixing belt can be used with the trolley case. The clever rear panel insert box design allows the weight of the backpack to be handed over to the trolley case, and travel has become easier from now on! • Humanized design: Shoulder strap D-shaped external hanging ring buckle, can hang keys, water cups, etc. S-shaped widening shoulder straps, relieve back pressure, comfortable decompression. • Wear-resistant and waterproof: Nylon fabric has the characteristics of wear-resistant and water-repellent, and the waterproof coating prolongs the service life of the bag. • Ventilation and breathability: The back is made of honeycomb breathable mesh fabric, which keeps the ventilation, making it more comfortable to carry.