【Space Saving】Travel backpack for men with vacuum sealed compartments, you can save 80% of clothing storage space after compression, you don't need to worry about can not to hold more clothes. You can manually press the air release or use the vacuum pump for faster compression, easy to operate. Please note: If the pump does not work, please charge it and try again. 【30L-45L EXPANDABLE DESIGN】Luggage Backpack can be expanded to a 45L super large capacity Backpack. When you don't need large volume, you can zip it up and change back to 30 liters. Our suggestion is 40L backpack more suitable for tall people, recommended 5.71 feet and above. 150 pounds and above people use, more suitable for men, because the backpack is large, suitable for 5 days of travel. 【For Travel-Multi Compartment】: Vacuum compression backpack separate 2 layers roomy compartment and multiple functional pockets, the laptop compartment fits most 15.6/17/17.3inch laptops and the smaller can hold tablet. With built in USB charging port lets you charge your phone or other electronic devices anytime. The clothes compartment can be opened 180 degrees which fits 5-8pcs clothes, packing cubes, shower bag etc. it's can hold the travel essential items great for 4-7days daily travel. 【Durable Material-Water Resistant & Anti-Theft Design】: The carry on backpack is made of high-quality water resistant, durable and anti-scratch oxford material; foam adjustable shoulder straps for your comfort. internal waterproof pouch at the top of front compartment can hold 2 T-shirts or towels that keep them away from water. There is a hidden zipper pocket on the back of the backpack which can holds important things such as phones, passport wallet etc, it's anti-theft and convenient. 【Our Service】: If you have any problems with our backpack, please feel free to contact us. The travel laptop backpack is a best gift for business traveling, weekend getaways, shopping, professional office work and other outdoor activities. ( this item is not intended for use by 12 years old and under) › See more product details