We made this bag with one goal in mind: To help alleviate some of the pain of flying. We frequently fly using our pack and we often end up struggling for more space. We found that the personal items that you are allowed to bring onto a plane (for us that is the pack) holds a lot of stuff you will never use on the flight. The Nest is designed to hold everything you need for a flight while still giving you the maximum amount of seat and foot space. While the nest can be used as a stand-alone bag, the bag designed as a backpack accessory. It is small enough to fit inside of the pack but large enough to fit everything you would need during a flight. It can fit a tablet, phone, power bank, snacks, headphones, water, and other essentials for long flights while leaving behind all of your non-flight-essentials in your backpack.