ORIGINAL PENGUIN Classics Backpack Fits Most 15-inch Laptop and Notebook, Navy, One Size

Hello and welcome to another Backpackies video. Today we're going to help you answer the question "what size backpack do I need" If you are shopping online for a backpack, picking the right size can get confusing because you don't have the bag in front of you. So it's harder to tell if a backpack will be too big or too small. This is where backpack capacity comes in. Most brands will list the backpack capacity online to give you a better idea of what can fit inside. Backpack capacity is usually measured in either cubic inches or liters. In this backpack size guide we're going to focus on liters because it's more common. On backpackies.com we like to break down backpacks into a few different size categories. Small would be any backpack under 19 liters. Medium backpacks are between 20 and 29 liters and large backpacks are between 30 and 39 liters. In this backpack size guide we're only go