The ABS system helps you not get trapped under snow. Up until now, 98% of those caught in an avalanche who were able to trigger their avalanche airbags, have survived relatively uninjured.As soon as you pull the release cord of your ABS avalanche rucksack, both airbags inflate within seconds. This extra volume increases buoyancy in the event of getting caught in an avalanche, and can prevent a person being buried under snow.