Unverified80% confidenceTradeoffTime unknown
填充物克重（g/m²）越高越暖但透气性越差、活动时越易闷汗，高强度有氧活动（越野跑、快速徒步）建议选40-60g/m²的Polartec Alpha主动式保暖棉，兼顾透气与短暂静态保暖
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80%
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Long-term
Relevance
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Unverified抓绒克重100g/m²（如Polartec 100）适合高强度有氧或3层系统的贴身中间层；200g/m²（Polartec 200）适合低温静态活动；300g/m²仅适合极寒静态场景（如冰钓、看比赛），运动登山选300g会大量出汗湿透83% similarUnverifiedPolartec Alpha Direct面料具有良好的透气性与主动运动排汗能力，适合高强度有氧运动时穿着而不易过热，这是相比传统Polartec 100/200抓绒的核心差异。83% similarUnverified格子抓绒（grid fleece，如Polartec Alpha或R1）克重轻（约180-220g）但保暖效率高、透气快干，适合作为高强度运动的贴身层；实心摇粒绒同克重更保暖但排汗差、易闷汗80% similarUnverifiedPolartec Alpha Direct超轻抓绒常见克重仅60-120g/㎡，透气性极强主打动态保暖，但耐磨和防风性极差需搭配外层80% similar
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