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Disclaimer: I go with tarps or tents instead of Bivy's but have used them before. Necessary: Protects you from water Protects you from strong winds Some ventilation (through openings or fabrics)...
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Disclaimer: I go with tarps or tents instead of Bivy's but have used them before. Necessary: Protects you from water Protects you from strong winds Some ventilation (through openings or fabrics)...