The Alias AvaLung Pack from Black Diamond is a must have for ski mountaineers. For long, technical ascents the reactive suspension system allows the pack to move with your movements. So you’ll actually feel the load less when you’re skinning up a ridge or jump turning down a couloir because the weight will not cut into your shoulders or bump against your back.
The streamlined design feels good, but the life-saving AvaLung mouthpiece is designed to extend your access to fresh air in case an avalanche strikes. It delivers fresh air from a valve box on your shoulder and expels CO2 at the base of the pack. This innovative system has been shown to greatly increase your fresh air supply giving rescuers more time to find the avalanche victim.
It’s an affordable, lightweight, and proven life-saving tool.