People walks pass The North Face exhibit displaying its new avalanche airbag “modulater system” that is a set of dual air bags that be attached to any backpack at the Outdoor Retailer Show Wednesday, January 21, 2015, in Salt lake City. The theory is that skiers get used to their favorite packs and don't always want to use a new pack to have the air bag. (Photo by Rick Bowmer/AP Photo)
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