14.5''x 21''x 8''

• Large Capacity Tactical Backpack and Multi Compartments Military Backpack】Regular Size: 14.5’’x 21’’x 8’’. Expandable Size: 14.5’’x 21’’x 13’’. Main compartment expands from 39L (2380 cu in) to 64L (3905 cu in). This school backpack has 4 main loading spaces and water bottle mesh pocket. Plenty of rooms for a lot of stuff and plenty of separate compartments you have organized.

• 【Multipurpose and Casual Laptop Backpack for Men Women Students】 This sog backpack is made of *Water Resistant* and durable 600D material, suitable for outdoor activities. This backpacks can be used to travel, trekking, hunting, hiking, climbing etc. This large backpack can be used as a book bag, school book backpack for college or high school students. This back pack is a casual daypack for different people, for men, women, boys and girls.

• 【Expandable Backpack Water Resistant】This backpack cab be expanded by zipper on the side. The thickness of the side can be switched between 8 'and 13', and the maximum packet capacity can reach 64L. Can hold more things and the side buckles make it easy to secure it and reduce the size if it's full, and this backpack is water resistant, very suitable for outdoor activities.

• 【Convenient and Practical in Daily Life】1. Water bottle mesh pocket in the side. It is convenient for you to drink water in outdoor activities. 2.The shoulder strap Molle system can be loaded with tactical pouches as shown in the picture (not included shoulder strap pouches) . 3. MOLLE system in the front, you can add different small pouch, mountaineering hook can be used for hanging small things.