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Quilts rank high in use by lightweight hikers, and can fair as well as sleeping bags - the idea being that insulation below your body is crushed, thus reducing it's insulation power.
被子形的睡袋在轻量化背包客当中也是备受推崇的，有时也能跟睡袋有的一拼，使用这个东西的来源想法是，睡袋背部的材料被身体压扁了之后便降低了保温能力。
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