18 Inch Multi Pocket Backpack is lightweight, scratch-resistant, tear-resistant, and splash-resistant. It is made of high-quality polyester fabric with high density nylon lining for better tear and water resistance and sturdy. The large backpack is perfect for both indoor and outdoor activities. This Urban Sport Casual Bag can a backpack, notebook, dual-purpose, small multi-pocket bag, high quality, good workmanship. The backpack strap is well-padded and adjustable to fit your body. The bag is comfortable breathable mesh shoulder straps with plenty of sponge padding to help relieve stress on your shoulder.