Skiing plays an important role in outdoor activities. It allows us to regain control of our body, makes us feel alive. However, in some cases, skiing comes with great risk. Avalanche is the worth thing a skier would like to encounter. Thunder is an adaptive avalanche airbag system. Usually, an avalanche airbag product can help you float on the snow in an avalanche circumstance. Thunder are more focusing on the human behavior, making this avalanche airbag system not only an effective safety equipment, but also a product that people are willing to purchase and use. Thunder effectively build-up the existing technology together and at the end, it has the potential to be a standard equipment for outdoor skier, and eventually saves lives when accidents happen.