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Amazon.com : Litume All Season Fleece Sleeping Bag Liner Adds Up to 27°F/ 15°C, Lightweight Mummy Sleeping Sack for Cold Weather and Winter Backpacking, Camping, Traveling with Drawstring Hood E629B : Sports
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Amazon.com: Coleman Stratus Fleece Sleeping Bag Liner, 50°F Sleeping Bag for Adults, Adds 12°F More Warmth When Used to Line Another Sleeping Bag, Stuff Sack Included
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