Unverified80% confidenceTradeoffTime unknown
保温性能与折叠便携性冲突：保温层越厚（8mm以上）越保温，但无法折叠收纳、日常占背包空间大；不带保温需求或办公室有加热条件的人应选无衬里可折叠款
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80%
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Long-term
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