【Real Professional Anti-Theft Protection】: ① The main pocket with laptop compartment is equipped with a combination lock to perfectly protect important items inside. ② The quick USB charging port realises safe and convenient charging for smartphone, without opening the backpack and holding powerbank.

【Functional Expandable】: This men's laptop backpack is made of high quality water resistant oxford fabric with high density nylon lining for better tear. By two-way zip it can expand 18.11*12.2*7.09 inches to 18.11*12.2*10.62 inches dimension and 26 to 38L volume, which meets almost all daily needs.

【Thoughtful and Abundant Structure】: The large main pocket with combination lock includes a 15.6 inch laptop compartment and expandable clothing fixing area, the another main pocket with convenient organizer compartments for books, powerbank, pens etc. 1 insulated bottle holder with zipper for keep warm/cold, 1 small front pocket and 1 hidden card pocket on the shoulder strap for fast getting. The shoulder strap can also be hidden under the back mesh sponge for comfortable hand carrying or fixing on the luggage suitcase.

【Ergonomic Design】: The padding with high elasticity on the shoulder straps and back ensures high wearing comfort, even when worn for long periods. Breathable and Comfortable. The top and side handles support hand carrying in a variety of ways. The padded compartments effectively protect laptop and other sensitive devices from shocks.

【 Versatile Use & Can be taken onto the Airplane】: The top and side each have a handle to support different hand carrying directions. The suitcase lever can go through the luggage strap to make the carry on backpack fixed on the suitcase. So it can be used as a unisex laptop backpack, travel pannier backpack, cabin hand luggage bag and day commute handbag.