【100% Lifetime Promise】: We will provide you with a lifetime commitment and friendly customer service support. Any questions for this ZMMMA extra large backpack please let us know 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 neat and organized. A large travel laptop backpack with a luggage strap that can be placed on top of a suitcase to help ease the load during travel. Big Backpack laptop provides you with convenience in trip | 【USB Charging Port & Anti Theft Pocket】ZMMMA extra large backpack has a USB port and a built-in charging cable so that you can charge your mobile phone and other electronic devices anywhere (without batteries). In addition, Travel backpack, laptop backpack back with anti-theft pocket design, during your journey, big backpacks for travel to protect the safety of valuables, anti theft backpack, anti theft backpack for men women travel | 【Comfy &Water Resistant】ZMMMA extra large travel laptop backpack features a padded and breathable mesh back panel to aid in ventilation and heat dissipation. Wide and breathable mesh shoulder straps provide excellent support for your back and reduce stress on your shoulders.This big backpack for travel heavy duty laptop backpack is made of Water Resistant material to protect your belongings on rainy days