Unverified75% confidenceTradeoffTime unknown
面料越厚越保暖但压缩空间小、叠穿层数受限；薄卫衣（260g左右）虽单件不够暖，但可与打底+外套形成三层空气层保暖更灵活
1
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75%
Confidence
Long-term
Relevance
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