Because airbags weigh enough as is.

Even if they weighed thirty pounds, airbags would still be worth hauling around in the backcountry. Luckily, Arva's Reactor 25 Ultralight Airbag Backpack only weighs three pounds so you can still be light on your feet while you tour through the backcountry's avalanche terrain. Just because it's lighter doesn't mean Arva modified the airbag to be lighter—that just sounds scary—but rather, paired the Reactor with an ultralight backpack that still boasts plenty of features (ski carry, snowboard carry, hydration compatibility, avalanche gear sleeve) and a capacity suitable for half-day tours.

The airbag itself features a gas canister deployment (cylinder sold separately) through dual air chambers around your neck, head, and sides for increased shock absorption and overall reliability. There's a chance an avalanche could pop an airbag, but this bag's dual chamber design can help you stay afloat if only one chamber pops. Arva made the safe-locking, retractable handle completely adjustable so you can place it right where you want.

  • Ultralight ski backpack with Arva's Reactor Avalanche Airbag
  • Airbag deploys with gas canister (sold separately)
  • Double chambers increase reliability if one side pops
  • Safe-locking, retractable handle adjusts up and down shoulder straps
  • Removable airbag pairs with other Arva Reactor backpacks
  • Ultralight pack boasts a 25L capacity ideal for half-day ski tours
  • Reviews
  • Q & A

Does the stated size of the ARVA airbag packs include the volume that is taken up by the airbag and deployment equipment?

Hi Joseph,



As a rule for all airbag packs, yes. The advertised capacity does include the volume taken up by the system. That said companies are getting very good at maximising the usable volume even with the system. I have not gotten the chance to use this particular pack but the general rule is 2 liters less than what is advertised. I recently took a look at the Mammut Light 30L airbag and found it to be very spacious and it comes in at only 4.5 lbs, 5.4 lbs with the cannister.



If you have any more questions, I am gearhead here and you can feel free to reach out to me personally at

Office: 801-619-7470

jeallen@backcountry.com