MULTI COMPARTMENTS Total 4 compartments: 1 separate laptop compartment, 1 main compartment and 2 front compartments provide multi-functional for your computer, A4 folder, books, clothes, etc. LAPTOP PROTECTION - The dedicated laptop compartment fits up to 15.6 laptop, come with a elastic strap can offer the optimal protection for your laptop. Tablet slot fits 13.3 laptop, 12.9" iPad. Great idea for someone with multiple electronic devices. ON-THE-GO CONVENIENCE With a luggage strap on the back, it allows the backpack to securely fit on the handle of a rolling suitcase - ease the burden in your journey. Back hidden pocket sits up against the wearer's body. It's difficult to steal your valuables without you feeling it. Let's travel. USB CHARGING PORT With inside charging cable and outside USB port, the backpack provides a more convenient and easier way to charge your devices. No need to keep power bank on the hand, make life easier. DURABLE & WATERPROOF LOVEVOOK backpack made of high density nylon fabric, the treated material makes the backpack stronger and water resistant. Lightweight: 1.82lb. Size: 11.5"L * 17"H * 7.2"D.