MARK RYDEN Anti-Theft Laptop Backpack, Business Backpack, Waterproof Travel Backpack, Fits 15.6 Inch Laptop for Men, with USB Charger, Black, 17.3, Black, 17.3

Dimensions: 50 × 15 × 32 cm (conventional), 50 × 25 × 32 cm (extended), suitable for laptops 17.3 inches/15.6 inches/14 inches, etc. The size of the flight has been approved.
Spacious and flexible storage space: thanks to the fully extended zipper, the packaging space can be increased by 30% to 40 litres. There is a laptop compartment, thick internal x1, iPad compartment 12.3 inch x1, can store 4 days of travel clothes.
YKK Zipper: This travel backpack uses YKK zipper, which is the world's first high-quality zipper. In addition, the two adjustable foam filled shoulder straps of the backpack have been reinforced, so they are more durable and will not be uncomfortable when carrying the backpack for a long time.
USB Port & Portability: This laptop backpack has a USB port on the side, allowing you to charge your phone while walking or driving. The luggage strap on the back of the backpack can attach the backpack to the suitcase and make it easier to carry.
Waterproof material: The backpack is made of hydrophobic material to prevent rainwater from entering. However, since the seam of the YKK pull link is not waterproof, please do not stay in the rain for a long time.

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