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Would this help condensation in my bivy? I'm camping this winter and keep waking up with frost : r/CampingandHiking
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3F UL Gear New Outdoor professional camping Tyvek sleeping bag waterproof cover Bivy lining protection sleeping bag liner - AliExpress
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Amazon.com : 3F UL GEAR Tyvek Sleeping Bag Cover Liner Waterproof Bivy Bag Camping Bags Ventilate Moisture-Proof Warming Every Dirty Inner Liner BIVY Sack (Type A) : Sports & Outdoors
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