INSULATED LUNCH BOX COMPARTMENT - The lunch backpack with a insulated cooler compartment,which can keep foods and drinks cool or warm about 3-5 hours(If you put 1-2 packs of ice packs, cold drinks can be kept more longer), easy to clean and storage when not use,perfect for work, office, picnic, hiking, camping, cycling, other outdoor activities and daily life use. Besides.Dimension of the cooler compartment: 14.5 x 6.7 x 7.8 inch, can hold up to 12 liters by volume. | TONS OF STORAGE & POCKETS- Large backpack for men own 1 separate thicker padded laptop compartment to hold up 17.3 inch laptop. 3 main compartments with double zippers can accommodate 50 liters of things, such as lunch, clothes, travel accessories and other daily necessities. Both side water bottle pockets outside for holding water bottles or umbrellas. More than 15 functional pockets ensure you to keep your personal belongings well-organized and get them easily. | TSA APPROVED & MULTIPURPOSE - Convenient at Checkpoint, can be opened the extra large backpack freely 90-180 degrees making you quickly through the airport security and keep items tidy, exclusive designed for airplane travel. The big backpack is perfect for indoor/outdoor activities. Suitable as large travel backpack for men, big backpack for men and work backpack for men. Perfect for work/commuting/occasional international travel/weekend trips/airplane trips/hiking camping/overnight trips. | LARGE SIZE & DURABLE MATERIAL- the 17 inch laptop backpack Dimension: 19.7"H x 13.4"W x 7.9"D. weight: 2.07lb, Capacity: 50L, separate padded laptop compartment hold for 15.6, 17 and up to 17.3inch Laptop/computers for women, men and teacher. The large laptop backpack made from high quality polyester fabric Anti Scratch with high density nylon lining for better tear and water resistant and heavy duty backpack. Large travel backpack is an idea gift for men women. | FUNCTIONAL & COMFORTABLE - The usb backpack with built in charging cable offers a convenient way to charge your phone and other electronic devices while walking. The back of the large laptop bag uses a comfortable and breathable mesh design, Comfortable wide breathable mesh shoulder straps with plentiful sponge pad help relieve the stress from your shoulder. One sides of the shoulder strap with lanyard design, can hang sunglasses. Perfect choice as large backpack for men women.