Unverified83% confidenceTradeoffTime unknown
防风与透气不可兼得：防风指数（CFM）越低越挡风但越闷，跑步选CFM 20-40的半防风款，逆风骑行/滑雪才需CFM＜10的全防风款
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83%
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Long-term
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Unverified软壳骑行服防风指数需看透气值(CFM)，CFM≤20为强防风适合10℃以下骑行，CFM 40-60为透气型适合10-18℃春秋季，纯挡风料(CFM≈0)长时间骑行易积汗闷热84% similarUnverified防风性看面料透气率（CFM值），软壳裤防风级CFM应＜10，纯防风膜可达CFM≈0但透气极差；日常防风徒步选CFM 5-20兼顾透气84% similarUnverified面料抗风性看透气率（CFM），防风马甲应≤10 CFM，接近0 CFM完全挡风但透气差；20-40 CFM属通风款只适合微风83% similarUnverified防风面料越致密（CFM越低）越挡风，但透气性和轻量化越差；追求极致防风会牺牲运动排汗，多数运动场景选10-20 CFM兼顾更实用83% similarUnverified防风与透气本质矛盾：CFM越低越挡风但闷热，CFM越高越透气但防风衰减，通勤日常CFM 10-20兼顾，专业防风选CFM<583% similar
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