You cannot afford any compromises if you want to survive an avalanche. Professional avalanche equipment must function in all weathers, at all temperatures and subject to all external pressures – always ready and absolutely reliable.
In an emergency, the TwinBag system can be effortlessly activated in a matter of seconds. The dual airbags have a volume of 170L, forming an effective, wide surface area together with the body.
The shape and position of the ABS® TwinBags increase the chances of staying on the surface of the avalanche signifi cantly and reduce the risk of injury.
If a slab of snow comes loose, you have very little time to react quickly and correctly. The moment you recognise an avalanche situation, you need to immediately pull the activation handle of your airbag and try to escape sideways to the fall line. It is better to activate once too often than once too seldom.
The ABS® system is always operational, with no need for charging.
Simple, fast and reliable activation. Option of remote activation by a companion.
Unimpaired vision and unrestricted freedom of movement. The activated airbags will not hinder you during your escape or evasive action.
The many tons of snow in an avalanche generate enormous mechanical forces. The rate of flow and characteristics of the avalanche layers vary greatly. You become the avalanche‘s toy, pushed upwards by the separation effect, but then sinking back down into the snow. The more vertical your position in the avalanche, the stronger the dragging and compression effects on your body during rotations. This increases the risk of injury.
The filling of the gas cartridge inflates the airbags even under high pressure from snow and in cold temperatures.
Any damage to one of the ABS® TwinBags does not result in a total failure of the system.
The TwinBags are positioned on both sides to stabilise the body and reduce dangerous rotations in the avalanche. No accumulation of snow between head and airbag.
The halt and solidifying phase decides whether you will be buried by the avalanche or remain visible on the surface. The snow mass settles from the bottom through to the upper layers and immediately solidifies. The more vertical your position in the moving mass of snow, the greater the probability of becoming stuck in the lower layers of snow and buried by subsequent flows (dangerous anchor effect).
In combination with your body, the TwinBags create a maximum sliding surface that helps to stop you from sinking into the avalanche and allows you to be carried along with the volumes of snow in the run-out zone.
The airbags are attached at the side, close to the centre of the body, to promote a horizontal position. This considerably reduces the risk of becoming stuck in the snow (anchor effect).
A person who remains visible, lying on the surface of an avalanche and with no fatal injuries from collisions survives!
When in motion, larger objects will always move to the top. This is also true in an avalanche. The rotating snow crystals creep under your body and push you upwards. But because of your higher weight by volume, this upward movement will then cease and you will sink back into the snow.
In order to avoid being buried in an avalanche, you must increase your volume. With a single pull of the activation handle, an additional 170 l of volume is inflated to help you stay on the surface. In scientific circles, this phenomenon is also known as inverse segregation and is often referred to as the "Brazil nut effect".
An avalanche is not a liquid like water. It is a granular material, comprising particles and chunks of snow of various sizes, which is why an inflated airbag will not automatically keep you on top of an avalanche. What is decisive is the ratio between additional volume and lifting surface.
The developers of the ABS® system have used these scientific findings to optimize the ABS® system according to the rules of the "Brazil nut effect".