Amazon.com: Laptop Backpack,Business Travel Anti Theft Slim 。Stylish and functional, the yellow backpack is perfect for everyday use. Its vibrant color adds a pop of brightness to any outfit. Product Details Material and Durability: The backpacks are typically made from durable, water-resistant polyester or composite twill nylon fabric. Design and Features: They often feature a wide-open design, multiple compartments, and sometimes include a USB charging port. Some models also have anti-theft pockets. Target Audience: The bags are marketed for various uses including school, work, college students, business travel, and casual day trips. Size: Common sizes include those designed for 15.6-inch laptops. The brand offers a variety of trendy and functional options in different colors and styles.