Black Diamond AvaLung II Sling

This nine-ounce shoulder sling allows you to breathe fresh air directly from the snowpack and diverts exhausted, carbon dioxide-rich air away from your fresh-air intake zone. The non-integrated AvaLung II is ideal if you're partial to a certain non-AvaLung pack or just want the versatility. The AvaLung II is proven to save lives; it's trusted by guides, avalanche control workers, patrollers and ski mountaineers worldwide.