Here's what other sites are saying:
This nine-ounce shoulder sling may be the most important piece of life-saving equipment you can wear when traveling in avalanche terrain.
- Black Diamond Equipment
Black Diamond Avalanche Safety Avalung II-M/L BD1500110000M_L1.
AvaLung II(TM) is a remarkable filtration device that draws air directly from the snowpack, allowing you to breathe if trapped in an avalanche.
The AvaLung II by Black Diamond weighs less than a pound, offers better breathing Performance than your own lungs while under Snow and wears easily over your existing outerwear. Features of the Black Diamond AvaLung II Allows an avalanche victim to breathe fresh air directly from the Snowpack Diverts CO2 away from fresh-air intake Ultra-lightweight-only 265 g, S/M
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