MULTI COMPARTMENT One separate laptop compartment can fit up to 17 Inch Laptop and iPad. Spacious main compartment can accommodate lots of stuff such as college supplies, travel accessories, clothes, stationary, notebooks etc. Perfect for weekend getaways, office work, business traveling and outdoor activities. Hard shell & Waterproof Made of durable ABS hard shell on the front flap and waterproof oxford fabric. The Hard Shell Armor and waterproof material could protect your items from light rain and your laptops from shock. Comfy & Convenient Comfortable airflow back design with thick but soft multi panel ventilated padding gives you maximum back support. Breathable and adjustable shoulder straps relieve the stress of shoulder. Luggage strap allows backpack to slide over the luggage tube, secure your backpack in place and convenient. USB Port design External USB port with set in charging cable offers you more convenient way to charge your phone and other electronic devices everywhere. *Please noted that this backpack doesn't power itself, USB charging port only offers an easy access to charge.