ARVA

Reactor 24L Flex Pro Airbag Backpack

What Our Gearhead® Experts Are Saying:

"I really like the Flex Pro system because it lets me swap pack sizes while keeping the same airbag base. The Reactor 24L is the perfect day-tour size—big enough for avy gear, layers, and food, without being bulky. The Reactor 2.0 system is super light and well-balanced, so it feels natural even on longer missions."

The Arva Reactor 24L Flex Pro Airbag Backpack is designed for backcountry riders who demand a balance of durability, safety, and adaptability. Built with abrasion-resistant Cordura reinforcements, this pack stands up to rough conditions, while the Flex Frame system lets us swap between covers for different pack volumes—all while using the same reliable airbag base unit.

At its core is the Reactor 2.0 system, one of the lightest airbag setups available, weighing just 650g and deploying two independent 75-liter balloons for redundancy in an emergency. The airbag sits compactly against the back panel, maintaining a natural carry and balanced feel on ascents and descents alike.

Organization is dialed with a dedicated avy gear pocket, large valuables or goggle stash, and quick front access to the main compartment. Comfort and fit are fine-tuned by the 3D-FIT adjustment system, which adapts instantly to different torso lengths and preferences. Add in diagonal ski carry, snowboard compatibility, hydration support, and a whistle-equipped waist belt, and this pack is ready for full days of exploring big terrain with an extra layer of safety at our back.