A backpack with rescue equipment in case of avalanches is allowed one per passenger, equipped with a pyrotechnic trigger mechanism, containing less than 200 mg of net explosive of category 1.4S and no more than 250 mg of compressed gas of category 2.2. This backpack must be packed in such a way that the trigger mechanism cannot be accidentally activated. The air bags in the backpack must be equipped with pressure relief valves. It is allowed to be transported in luggage. If your baggage meets the above requirements, you will receive permission from the airline.