The R.A.S. is a removable avalanche airbag system. It allows the user to independently install the system in a R.A.S. ready backpack and remove it as required. He or she can therefore use the R.A.S. ready backpack both with the airbag system (e.g. when freeriding) and without (e.g. for a day on secured pistes). It also allows the user to always select the backpack best suited to the specific purpose. E.g. the Protection R.A.S. for a day freeriding or the Pro R.A.S. for a multiple-day tour, using the same airbag system each time. The R.A.S. is also distinguished by its simple and safe operation and has been certified by the TUEV South.