• Good Quality - Made of premium PU leather+Oxford cloth material, wear-resistant, water-repellent and durable for long term use 
• Large Capacity - This large travel backpack with an expandable design gives you a greater capacity of up to 38L, roomy enough to organize your 15.6-inch laptop
• Expandable Storage Space - Unzipping to get larger storage space, you can easily fit 5-7days' travel gears
• Convenient Design - A luggage fixing strap on the back is designed to fit on the luggage's handle, for easier carry on travel and aboard. With thicked padded shoulder strap for reducing pressure on your shoulder
• USB Port for Easy Charging - With the built-in USB charger port outside and built-in charging cable inside, it offers you a more convenient way to charge your phone while walking (But this backpack doesn't power itself, USB charging port only offers easy access to charge)
• Great Gift - A perfect gift for your husband, wife, daughter, son and other friends, ideal for weekend traveler, or occasional vacationer

Specification:

• Material: Oxford cloth+PU
• Overall size: 46*28*20cm
• Laptop compartment size: 42*26cm
• Tablet compartment size: 34*26cm
• Adjustable length of shoulder strap: 40-83cm
• Weight: 1.1kg