🌡️ Comfort-rated -20°F mummy sleeping bag with 550-fill-power synthetic insulation and draft collar. Full-length two-way zipper allows venting without cold spots. Shoulder girth: 62 inches — not a straight bag that binds shoulders. Internal draft tube seals zipper gaps that bleed heat at sub-zero temps. Water-resistant shell DWR treatment. Stuff sack compresses to 12×8 inches. The sleeping bag is the single most critical thermal investment in a bug-out kit — a bag rated to conditions 30° colder than you expect is always the right call. Includes compression sack.
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