Marmot Atom Sleeping Bag: 40 Degree Down
Marmot Atom Sleeping Bag: 40 Degree Down

Deep under Utah’s Wasatch Mountains, there’s a secret gear lab wheresmarter-than-NASA scientists shoot feathers, fabrics, and waterproof treatmentsaround a track at millions of miles per hour, crashing them together andobserving the products that result. One of the creations is the Marmot Atom…

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