STORAGE SPACE & POCKETS: The main pocket of backpack is equipped with a separate laptop soft compartment hold 15.6-inch laptops and 15-inch, 14-inch and 13-inch Macbooks/notebooks. The soft sponge design will protect your laptop. Outside the compartment, a more spacious packing compartment roomy hold an iPad, mouse, charger, binder, books, clothes, etc. Mesh pockets are located on the sides of water bottles and compact umbrellas to keep your belongings organized and easier to find STURDY & COMFY:Made of Waterproof and Sturdy Polyester Fabric with metal zippers. Ensure a secure & long-lasting usage everyday & weekend. Comfortable airflow back design with thick but soft multi-panel ventilated padding, gives you maximum back support. FUNCTIONAL & SAFE: A luggage strap allows backpack fit on luggage/suitcase, slide over the luggage upright handle tube for easier carrying. With a hidden anti theft pocket on the back protect your valuable items from thieves. Well made for