Main material: Black Nylon (Stretchable + USB) Closure: Zipper; Expandable and Spacious: This is an extra large travel backpack measuring 45 x 36 x 20 cm (height x length x width), it can easily expand up to 25 cm for greater 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-repellent material. Small raindrops will not corrode or damage the packing. The back of the backpack is made of breathable terry cotton, which makes your back more breathable and cooler.; USB Port and Sophisticated Hardware: This is a useful laptop backpack as it has a USB charging port and an internal charging adapter cable to charge your phone on the go. Waterproof zipper with adjustable tightening straps to lock the backpack, providing a sense of security.; Top and Side Handles: You can carry this flight bag with these two handles to easily switch to the comfortable way you prefer, and it is also convenient when checking in, placing it under the seat or putting it in the cabin.

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