Avalanche Airbags

AIRBAG FLEX PRO 40
FLEX

Infinite volume

The PRO 40+ FLEX offers record storage space of up to 50L, ideal for long or remote operations. Compatible with the modular FLEX system.

$939.95

Tax included

Quantity Out-of-Stock

Designed for long missions

Designed for rescue workers operating in remote areas, the PRO 40+ FLEX offers extended and modular capacity to meet the demands of long and challenging missions. Robust and ergonomic, it combines large capacity, optimized organization, and maximum safety for operations in extreme conditions.

Thanks to its rolltop construction, its volume extends from 40 to 50 L, allowing you to carry a full range of equipment, from rescue gear to technical logistics. The complete separation between the main pocket and the FLEX FRAME base offers unique modularity: an internal partition allows you to isolate the contents, create a dedicated space, or carry only the airbag section for a lighter and freer experience. The whole thing opens flat like a suitcase, ensuring total and quick access to all equipment, even in an emergency.

Combined with the ARVA REACTOR 2.0 airbag system—the lightest, most powerful, and most reliable on the market—the PRO 40+ FLEX becomes a trusted ally for professionals who operate where the mountains leave no room for error.

WARNING! Cartridge not included.

Separate Volume
Weather Protection
Optimized Handling
Gear Carry at the Waist
Ski Carry — Your Choice
Internal Pockets
3D-FIT

Separate Volume

The PRO 40+ FLEX features a fully independent separation between the main pocket and the FLEX FRAME base. An internal divider allows you to isolate gear, create an additional compartment, or reduce the load by keeping only the airbag unit for greater freedom of movement and safety. The pack opens completely flat, like a suitcase, providing full and quick access to all your equipment.
Weather Protection

Because some days demand maximum protection from snow and rain, the pack is built with water-repellent fabrics and water-resistant zippers, creating an effective barrier against harsh conditions.
Optimized Handling

A padded side handle makes it easy to grab, move, or load the pack, whether in a vehicle, on a chairlift, or in a storage area. A small detail designed to simplify every move in the field, even with gloves on.
Gear Carry at the Waist

Because certain tools must always stay within reach, the FLEX BASE includes a dedicated hammer holder and an attachment loop to clip any essential accessory. A simple and reliable system, built to let you act fast on the field.
Ski Carry — Your Choice

Every professional has their own habits. This pack allows both diagonal and A-Frame ski carrying options. Maximum stability or faster setup — adapt the mode to your terrain and your skis.
Internal Pockets

Multiple dedicated internal compartments help organize and secure your gear, ensuring quick access and clear organization during every operation.
3D-FIT

Our 3D-FIT system allows you to quickly adjust your pack to your fit preferences and body size for maximum comfort. Select S, M, or L in just one pull to instantly adjust back height, shoulder strap length, and the position of the REACTOR trigger handle for the perfect fit.

Weight

Pack without system : 1710 g
Pack + system : 2350 g
Pack + system + carbon cartridge (EU) : 2680 g
Pack + system + steel cartridge (EU) : 2850 g
Pack + system + carbon cartridge (US) : 2710 g
Pack + system + steel cartridge (US) : 2940 g

Dimensions

Width : 33 cm
Height : 75 cm
Depth : 26 cm
Back size: 45 to 51cm

SPECIFICATIONS

PRO 40+ FLEX COVER :

Expandable volume from 40 to 50L.
Compatible with FLEX technology.
Dual access to the main compartment: from the top and the back.
Complete separation of the volume and base, for lighter weight operations.
Modular carrying system with Daisy Chain.
Capable of carrying two ice axes.
Diagonal or side “A-Frame” ski carrying, snowboard and snowshoe carrying.
Compatible with ARVA helmet carrier and PATROLL.
Dedicated safety pocket.
Five small pockets for organization and small valuables.
Velcro customization area.
Padded side handles.
Water-resistant zippers and fabrics.
Composition: High-density recycled RIPSTOP polyamide.

FLEX FRAME :

Equipped with the ARVA REACTOR 2.0 airbag system.
Compatible with FLEX technology.
One large belt pocket.
Belt equipped with a hammer holder and gear ring.
Shoulder strap with handle storage pocket.
3D-FIT shoulder straps.
Compatible with hydration systems.
Stiffened, comfortable back with thick padding and internal structure.
Adjustable chest strap with strap bridge.
Integrated crotch strap
20kg helicopter rescue ring.
Composition: High-density recycled RIPSTOP polyamide.
Back size: 45 to 51cm
TUV GS certified
Complies with EN16716 standard

Switch Technology

1 FRAME, 5 COVERS FOR SPECIFIC USES

Keep the same Reactor airbag frame and SWITCH bags depending on your outing. TOUR for light hiking without sacrificing versatility, and ST for freerando with additional features.

Versatile
Evolving and durable
Low Profile
Tour Range
Ski Trip Range

Versatile

Through our SWITCH technology, you no longer need to choose a single volume or design for your avalanche airbag backpack. Outfit yourself with a SWITCH BASE unit and several SWITCH COVERS to change pack volume in a fraction of a second, so that you can take just the right pack for the day’s outing in the backcountry.

Its takes only a fraction of a second to change one SWITCH COVER for another to configure your ARVA REACTOR avalanche airbag backpack to the day’s outing.
Evolving and durable

As part of our overall approach to sustainability, we have designed these packs to last as long as possible. The ability to change covers means that you only need to purchase one airbag system, back panel, and shoulder strap unit, which are the components that have the greatest impact on the environment.

Wether choosing a bigger pack unit to carry all the essentials for your next big outing into the backcountry or simply renewing part of your system, no need to purchase a brand new backpack.
Low Profile

Through our new, innovative LOW PROFILE technology, we decided to completely revamp the design our REACTOR avalanche airbag backpacks by integrating the airbag into the pack itself.

The latest generation of packs designed with our LOW PROFILE technology means a more compact size, enhanced load distribution, and new features like the option of carrying skis in an A-Frame.
Tour Range

The TOUR range is the best weight/functionality ratio for touring addicts.

Available in 25, 32 or 40(+10) Liters, they will allow you to climb lightly without compromise.

Furthermore, the TOUR range is designed with recycled fabrics.

Watch TOUR range in video

Watch
Ski Trip Range

The Ski Trip range is available in two sizes: 26 and 30 liters.

It offers a sleek design and a refined technicality with its waterproof fabrics and zippers.

Ideal for the freerider, this range delivers performance, versatility and elegance.
The Ride range comes in two sizes: 18 and 24 liters.

It was created in collaboration with Léo Slemett, a professional athlete.

Developed to accompany you during your best freeride outings.

Presentation of the RIDE range in video

Watch

Versatile

Through our SWITCH technology, you no longer need to choose a single volume or design for your avalanche airbag backpack. Outfit yourself with a SWITCH BASE unit and several SWITCH COVERS to change pack volume in a fraction of a second, so that you can take just the right pack for the day’s outing in the backcountry.

Its takes only a fraction of a second to change one SWITCH COVER for another to configure your ARVA REACTOR avalanche airbag backpack to the day’s outing.

Evolving and durable

As part of our overall approach to sustainability, we have designed these packs to last as long as possible. The ability to change covers means that you only need to purchase one airbag system, back panel, and shoulder strap unit, which are the components that have the greatest impact on the environment.

Wether choosing a bigger pack unit to carry all the essentials for your next big outing into the backcountry or simply renewing part of your system, no need to purchase a brand new backpack.

Low Profile

Through our new, innovative LOW PROFILE technology, we decided to completely revamp the design our REACTOR avalanche airbag backpacks by integrating the airbag into the pack itself.

The latest generation of packs designed with our LOW PROFILE technology means a more compact size, enhanced load distribution, and new features like the option of carrying skis in an A-Frame.

Tour Range

The TOUR range is the best weight/functionality ratio for touring addicts.

Available in 25, 32 or 40(+10) Liters, they will allow you to climb lightly without compromise.

Furthermore, the TOUR range is designed with recycled fabrics.

Watch TOUR range in video

Watch

Ski Trip Range

The Ski Trip range is available in two sizes: 26 and 30 liters.

It offers a sleek design and a refined technicality with its waterproof fabrics and zippers.

Ideal for the freerider, this range delivers performance, versatility and elegance.

The Ride range comes in two sizes: 18 and 24 liters.

It was created in collaboration with Léo Slemett, a professional athlete.

Developed to accompany you during your best freeride outings.

Presentation of the RIDE range in video

Watch

REACTOR SYSTEM

1 SINGLE SYSTEM FOR ALL OUR RANGES OF AIRBAG BACKPACKS

Two airbags are safer than one!
The lightest avalanche airbag system on the market
Positioning is important
The ultimate inflation system

Two airbags are safer than one!

We developed Flex technology to allow you to change the carrying capacity of your ARVA REACTOR avalanche airbag backpack in just a few seconds based on need.

Choose an additional FLEX COVER element to create the pack that best suits your needs.
The lightest avalanche airbag system on the market

Weighing in at just 650 g, our ARVA REACTOR 2.0 airbag system is the lightest airbag system on the market across all categories.

Made in France, the avalanche REACTOR Airbag System is designed exclusively for ARVA backpacks.

We oversee the entire process, from design to production, to provide you with the highest level of performance and safety.
Positioning is important

The most powerful system on the market, its compact size, and position in the backpack guarantee uncompromising balance and safety.

The shape of our airbag protects your head and optimizes lift in an avalanche.

The position of the airbags increases the surface area. It also helps the body return to the surface, and the airbag volume plays an important role in pulling the body upwards.
The ultimate inflation system

As 60% of airbag backpack releases occur when the skier is caught in an avalanche, it is essential to have a system that can inflate under stress.

Video presentation of the REACTOR range

Watch

Two airbags are safer than one!

We developed Flex technology to allow you to change the carrying capacity of your ARVA REACTOR avalanche airbag backpack in just a few seconds based on need.

Choose an additional FLEX COVER element to create the pack that best suits your needs.

The lightest avalanche airbag system on the market

Weighing in at just 650 g, our ARVA REACTOR 2.0 airbag system is the lightest airbag system on the market across all categories.

Made in France, the avalanche REACTOR Airbag System is designed exclusively for ARVA backpacks.

We oversee the entire process, from design to production, to provide you with the highest level of performance and safety.

Positioning is important

The most powerful system on the market, its compact size, and position in the backpack guarantee uncompromising balance and safety.

The shape of our airbag protects your head and optimizes lift in an avalanche.

The position of the airbags increases the surface area. It also helps the body return to the surface, and the airbag volume plays an important role in pulling the body upwards.

The ultimate inflation system

As 60% of airbag backpack releases occur when the skier is caught in an avalanche, it is essential to have a system that can inflate under stress.

Video presentation of the REACTOR range

Watch

FLEX RANGE

1 AIRBAG BASE, 5 MODELS FOR SPECIFIC USES

A fast and flexible system with different volumes and uses to meet the needs of mountain professionals. Our Flex technology requires no additional zips, which means no extra weight compared to a traditional REACTOR bag.

FLEXIBLE
Designed for professionals
Robust
FLEX PRO
FLEX BLAST

FLEXIBLE

We developed Flex technology to allow you to change the carrying capacity of your ARVA REACTOR avalanche airbag backpack in just a few seconds based on need.

Choose an additional FLEX COVER element to create the pack that best meets your needs.
Designed for professionals

FLEX technology has been developed to meet the requirements of our professional partners.

We were keen to offer a simple and robust solution because we know it is essential to be effective in rescue situations.
Robust

The FLEX FRAME is built for intensive use and is comfortable to carry.

The shoulder straps, back, and waistband are fitted with reinforced foam to keep you going season after season.

We have used high-tech components like P140 x 210D CORDURA ripstop HR fabric to make the products as durable and efficient as possible.
FLEX PRO

The FLEX PRO range is made up of 4 models with different volumes and uses to meet the needs of mountain professionals.

Choose a compact model for your freeride outings and a larger model for your freeride ski touring or multi-day backcountry outings.

Video presentation of the FLEX range

Visionner
FLEX BLAST

The additional FLEX BLAST element is intended for trackers who undertake mining operations.

A large compartment is set aside to store explosives so as not to contaminate the rest of your bag.

A compartment for safety equipment is also provided, and a third compartment is available to store your belongings.

FLEXIBLE

We developed Flex technology to allow you to change the carrying capacity of your ARVA REACTOR avalanche airbag backpack in just a few seconds based on need.

Choose an additional FLEX COVER element to create the pack that best meets your needs.

Designed for professionals

FLEX technology has been developed to meet the requirements of our professional partners.

We were keen to offer a simple and robust solution because we know it is essential to be effective in rescue situations.

Robust

The FLEX FRAME is built for intensive use and is comfortable to carry.

The shoulder straps, back, and waistband are fitted with reinforced foam to keep you going season after season.

We have used high-tech components like P140 x 210D CORDURA ripstop HR fabric to make the products as durable and efficient as possible.

FLEX PRO

The FLEX PRO range is made up of 4 models with different volumes and uses to meet the needs of mountain professionals.

Choose a compact model for your freeride outings and a larger model for your freeride ski touring or multi-day backcountry outings.

Video presentation of the FLEX range

Visionner

FLEX BLAST

The additional FLEX BLAST element is intended for trackers who undertake mining operations.

A large compartment is set aside to store explosives so as not to contaminate the rest of your bag.

A compartment for safety equipment is also provided, and a third compartment is available to store your belongings.

AIRBAG FLEX PRO 40
FLEX

AIRBAG FLEX PRO 40
FLEX

Designed for long missions

Weight

Dimensions

SPECIFICATIONS

Europe (€)

USA ($)

Canada ($CA)

AIRBAG FLEX PRO 40 FLEX

AIRBAG FLEX PRO 40 FLEX

Designed for long missions

Weight

Dimensions

SPECIFICATIONS

Europe (€)

USA ($)

Canada ($CA)

AIRBAG FLEX PRO 40
FLEX

AIRBAG FLEX PRO 40
FLEX