Product descriptionThe SCOTT claim this is the ultimate freeskiing avalanche backpack. The Patrol E1 30 Backpack Kit  features the Alpride E1 Airbag system. This fully electronic airbag system pushes the boundaries of innovation, thanks to its supercapacitor technology. The big benefits of Alpiride supercapacitor technology areCold temperatures do not affect the performance or charge of the supercapacitorTurbo radial fan = more power and volume in a shorter amount of time1280g full system weight = 720g lighter than any other electronic system on the marketMechanical trigger and deflation release = no electronic error possibleNo cartridges /no li-ion battery = no restrictions for travelling and shipping2x AA batteries = recharge on the mountain without power supplyWith A-frame & diagonal ski carry you should have no restrictions on where you can explore. As well as all the avalanche & hiking features you also get a very comfortable bag with good easy access to the main load area of the bag. This bag is also available in a 22L daypack size or a 40L expedition size. Travel  - The Patrol E1 pack is also easier to travel with compared to some Avalanche air bag systems. this is becase the E1 airbag system is an electrical airbag system and is powered with 2 x AA battery (visible under the battery cover) The Alpride E1 system has: • No LI-Po or Li-ion Batteries • No Pyrotechnics • No Cylinders under pressure / cartridges of compressed gas • The E1 airbag system is fitted with pressure relief valves. • By switching OFF the system, there are no risks to be accidentally activated. • The E1 system is CE certified following EN16716:2017 and the following standards are met: If you are treaveling & want to have the documentaion stating that the bag is safe to travel with you can download the travel document from the Scott website  under the documents heading. Scott Patrol E1 Backpack Including Avi System Black Gery tangerine orange 30L W19/20