?[Friendly Customer Service]We provide lifetime worry- after-s of this travel laptop backpackIf you have any problems with our carry-on luggage, please feel to us, we will try our to solve it(THIS PRODUCT IS NOT INTENDED FOR USE BY PERSONS UNDER THE AGE OF 12 [Reduce Pressure]Regular Size: 19 12 5 inches; Expanded Size: 19 12 9 inchesEquipped with adjustable chest straps, air mesh ventilated back panel, the travel laptop backpack for men women can effectively relieve the pressure on the shoulder and neckThe travel backpack features thickened sponge handles and shoulder straps, providing you more comfort when carrying and gripping the travel laptop backpack [Expandable & ]This large travel laptop backpack is designed to be a backpack for travel, expandable to a large capacity pack up to 50L, zipper open to get larger storage spaceThe men women carry-on luggage backpack fits overhead and under the seat while being a standard carry-on size, ideal for business or weekend trips and easily carried on most flights [Airline Approved & Practical]: The airline approved large travel laptop backpack can be opened 90-180 degrees ly, so you can quickly pass through airport security and keep everything organizedThe luggage strap on the back allows men to ly slide the travel backpack onto the handle of any rolling luggage for hands- carrying and easier transportationPerfect travel gift for men and women[USB Charging Port and Headphone Hole]Built-in USB Charging Port and headphone external hole design on the backpackThis travel laptop backpack is convenient to charge your phone (Note: POWER BANK is not included)The headphone jack provides a hole for you to enjoy music while walking.