The WeiTrust Waterproof Travel Laptop Backpack is a durable and secure option for carrying laptops up to 17.3 inches in size. Made from waterproof nylon material, this black backpack features padded protection for the laptop and offers water-resistant properties to keep the device safe in various weather conditions. With a sleek design and compact dimensions of 18 inches in height, 12 inches in length, and 6 inches in width, this backpack is suitable for universal laptop models, making it a versatile choice for traveling and everyday use.