The Most Influential Gear of All Time: Snow Lion Polarguard Mummy Sleeping Bag


A 1976 Snow Lion Bag

A 1976 Snow Lion Bag     Photo: Tim Jones/

Snow Lion’s synthetic backpacking mummy bag was the first high-performance sleeping bag. At that time, most synthetic bags were heavy and were prone to shifting insulation that left cold spots. The Snow Lion used continuous fiber filament Polarguard insulation that kept warmth evenly distributed. And, to prevent cold air from sneaking in at the zipper, Snow lion added a patented draft-busting double zipper.

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