An avalanche airbag backpack is a safety device designed for outdoor enthusiasts, particularly those engaging in activities like skiing or snowboarding in mountainous areas. It features an inflatable airbag that deploys during an avalanche, helping to keep the wearer on the surface of the snow and increasing their chances of survival. These backpacks typically include a trigger mechanism that allows the user to activate the airbag quickly in an emergency. Many models also come with additional features such as storage compartments for gear, hydration systems, and safety equipment, making them practical for backcountry adventures.