Unverified80% confidenceTradeoffTime unknown
蓬松度越高（fill power 600以上）越保暖轻便但价格陡增，儿童日常穿着600蓬松度已足够，追求800+高蓬松反而因面料需更防钻绒导致偏硬，牺牲儿童活动灵活性
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80%
Confidence
Long-term
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