ZMMMA Travel Backpack, Carry On Backpack, 45L-50L Expandable Airline Approved Luggage Bag, Waterproof Business Overnight Daypack with USB Port, Weekender Bag Fits 18 Inch Laptop, Gifts for Men Women

【100% LIFETIME-WARRANTY】We provide lifetime after-sales service for this Large Carry On Backpack, in case you have any questions, please feel free to contact us, we can provide you with a satisfactory solution within 24 hours. ZMMMA is committed to providing top of the range and practical backpacks for every customer
【Expandable Extra Large Capacity】This large Commute backpack is 42L before expansion and measures 19x12x8inch; 50L after expansion and measures 19x12x9.8inch, you’ll expand the zippers and buckles as you wish. Large backpack has 10+ functional pockets ensure your personal belongings are well organized and easy to access. Flight approved carry on laptop backpack can accommodate 17.3 inch laptop, 18 inch laptop. 17 inch laptop backpack is equivalent to 18 inch trolley case
【Design for Commute】Commute backpack with luggage strap and two sturdy handles. Its back features a luggage sleeve/strap and two padded handles on the top and side are designed to lift the carry on backpack from more than one angles, providing you with a more flexible carrying experience. The luggage strap on the back allows be slid over the luggage tube, the 50L Commute backpack is easy to carry, and it is great for 3-5 days of daily Commute/ business Commute or short trips
【TSA Flight Approved Backpack】: ZMMMA carry on backpack flight approved has a TSA design that opens 90°-180° to get you through airport security quickly. The main compartment of the large backpack has a built-in elastic band to safe the contents of the bag. As an airline approved carry on backpack, the carry on backpack fits overhead and under the seat. This large backpack is ideal for outdoor activities, business traveling or the overnight go back and forth
【USB Charging Port & Micro Port】: Commute backpack with external USB charging port and Micro port with built-in charging cable can easily and conveniently charge your phone or electronic device whilst walking. This Carry On Backpack has an additional Micro port than the regular backpack, providing you with more options and convenience