100% Lifetime Warranty: We will provide you with a lifetime commitment and friendly customer service support. Any questions for this ZMMMA extra large backpack please contact us at any time and we will reply within 24 hours. This item is not intended for use by 12 and under Large Capacity & Organization: Extra large Travel Laptop Backpack 50L Total more than 10 pockets. The big backpack has 3 spacious compartments, TSA compartment for 17.3 inch laptops, main compartment for coats, folders, travel supplies and others. The front pocket of big backpack for men can hold keys, pens, notebooks. Travel Backpack 2 side pockets for bottle and umbrella, anti-theft pocket on back concealed and secure. Big backpack with lots of pockets helps keep things organized TSA Approved & Luggage Strap: Travel backpack for men airline approved, an extra large laptop backpack that opens 90-180 degrees. TSA designed big backpacks to quickly pass through airport security and keep things n