Main material: Black Nylon (Stretchable + USB) Closure: Zipper; Expandable and Spacious: This is an extra large travel backpack that measures 45 x 36 x 20 cm (height x length x width), it can be easily expanded up to 25 cm for larger capacity. This travel backpack has a large compartment that can hold your 17.3-inch laptop with a padded pocket, it can also hold magazines, laptops and tablets, etc. Front compartment for your clothes, pajamas, towels and more.; Coated nylon and delicate materials: This backpack is made of high-quality nylon and covered with abrasion-resistant and water-resistant material. Small raindrops will not corrode or damage the package. The back of the backpack is made of breathable terry cotton makes your back more breathable and cooler.; USB port and sophisticated hardware: This is a useful laptop backpack because it has a USB charging port and an internal charging adapter cable to charge your phone on the go. Waterproof zipper with adjustable tight straps to lock the backpack, giving a sense of security.; Top and side handles: You can take this flight bag with you with these two handles to easily replace in the convenient way you prefer, and it is also practical when checking in, placing it under the seat or inserting it into the cabin .

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