An innovative new feature appearing in many modern refrigerator designs is a door-in-door system. This two-door system allows for easy access to the items you use the most, without having to fully open your refrigerator. Having this unique door-in-door feature makes quick visits to the fridge easy and convenient. Access to the door bins, where beverages, condiments, and snacks are commonly stored, is effortless with the ability to open an outer door without having to open the main door. This feature saves cold air from escaping the refrigerator, saving energy. As this convenient design feature becomes more in-demand, door-in-door technology is emerging in more models than ever. Whether you are looking for a French-door refrigerator or a side-by-side unit, this new technology is available in almost every refrigerator style.