Unverified85% confidenceTradeoffTime unknown
蓬松度越高越保暖越轻，但价格和维护成本也越高；日常通勤在温和地区用600-700FP完全够用，追求800FP以上主要为极寒或极致轻量需求，普通人性价比低
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Unverified蓬松度越高越轻暖但价格陡增，从700FP到900FP保暖提升边际递减；日常通勤700-800FP性价比最高，追求900FP以上更多是户外极限或轻量化需求91% similarUnverified蓬松度越高越轻暖但越贵，且过高蓬松（900FP+）室内易过热闷汗；城市日常通勤700-800FP已足够，无需为极限保暖买单86% similarUnverified蓬松度越高越保暖轻便，但同蓬松度下鹅绒比鸭绒贵约30-50%；日常城市通勤700-800FP鸭绒已足够，追求800+FP鹅绒主要为极致轻量而非必要保暖86% similarUnverified蓬松度越高（800+）越轻暖但价格陡增，日常通勤及叠穿场景600-700FP已足够；极寒户外单穿才需800+高蓬松85% similarUnverified蓬松度600FP以下的羽绒服保暖效率偏低，日常城市通勤选700-800FP性价比最高，登山/极寒地区才需要850FP以上85% similar
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