Expandable Air Cushioned, Vacuum-Compressed Backpack: Waterproof, Spacious, and Versatile Business Travel Bag

Expandable Air Cushioned, Vacuum-Compressed Backpack: Waterproof, Spacious, and Versatile Business Travel Multifuction Bag

• Durable & Waterproof Material: This travel backpack is made of waterproof and durable polyester with good breathability and heat dissipation, which can effectively provide your stuffs on drizzle days.
• Expandable Backpack: Before expansion – 11.8*6.3*18.1 inches(L*W*H); After expansion – 11.8*10.6*18.1 inches(L*W*H). Capacity up to 40L after expansion, Increase capacity, improve comfort and relieve back pressure. The 180 degree zipper seal helps you get through security quickly.
• Large Storage Space: This travel backpack is spacious enough to organize your daily & travel essentials. The main compartment has a vacuum compression design, which simply opens the one-way exhaust valve and presses the exhaust to double the backpack capacity. A separate laptop compartment holds laptop up to 15.6 inches.
• Designed for Travel: There is a zipper pocket on the back of the bag, which can store valuables such as mobile phones and iPads, which is anti-theft and convenient. Two padded grab handles are set on top and side for easy switching between backpack and suitcase. A strap on the back for luggage pass-through for convenient carry.
• Portable USB Charging Port: Built-in charging port to charge your phone anytime, anywhere. Note: The backpack only offers a convenient USB charging port, Power bank not included.