Mark Ryden Laptop Backpack, Large Capacity Business Laptop Backpack, Waterproof Carry-on Travel Backpack, Suitable for 17.3 inch Laptops for Men and Women with USB Charger, Black

Dimensions: 19.68 * 12.5 * 5.9 inches (regular), 19.68 * 12.5 * 9.8 inches (extended), suitable for laptops within 17.3 inches and 15.6 inches, Laptop compartment accommodates laptops up to 1.41 inches thick, and this backpack Flight-Approved.
Large Storage Space: With Expansion YKK Zipper, the packaging space can be increased from 26 L to 44 L. Equipped with a 17.3 inch laptop compartment, a 12.3 -inch iPad compartment, an extra-large mesh compartment with Waterproof bag, an deep front pocket and a back anti-theft pocket, which can store clothing for 3 to 4 days, folders, outdoor adventure equipment, and safety Helmets, etc. It is an essential backpacks for traveling, hiking and cycling.
WATERPROOF: This men backpack is made of hydrophobic material, which is water-repellent and can withstand short-term rain washing. Prevent your laptop from rain. (the back breathable sponge shoulder straps are not waterproof, so please do not expose to heavy rain for a long time.
YKK Zipper: This travel backpack uses The world' s first high-quality YKK Zipper to get rid of the troubles of zipper quality. In addition, the two adjustable shoulder straps and two side handles of our backpack are reinforced, so that carrying heavy objects will not pose a threat to the backpack. And it reduces the discomfort of wearing the backpack for a long time.
USB Charging: There is a USB port on the side of the travel backpack, you can charge your phone while walking or cycling. It is the most suitable backpack for cycling enthusiasts and travelers, and it is also suitable for daily use and work.