Unverified88% confidenceTradeoffTime unknown
充气垫（如带隔热棉/铝箔反射层的气垫）R值可达4-6且压缩体积小，但怕扎破且吹气费力；泡沫垫R值多在1.5-2.5、几乎不可损坏但体积大，适合硬核徒步防止漏气风险
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88%
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UnverifiedR值可叠加：泡沫垫(R2)+充气垫(R3)组合叠用可获得约R5隔热效果，比单买高R值垫更灵活且提供地面破损缓冲保护78% similarUnverified护臀短裤护垫分EVA泡棉与D3O/PORON等聚合物两类。EVA泡棉厚度需≥10mm才有基础缓冲，适合休闲骑行；聚合物护垫可做到6-8mm薄款却提供更高防冲击，适合速降/滑板等高强度场景75% similarUnverifiedExped充气垫面料相对轻薄，在粗糙地面使用时建议搭配地布，抗刺穿能力不如厚实的自充气垫75% similarUnverified该垫采用30D/40D面料，充气垫本身在防刺穿方面弱于自充气或泡沫垫，野营地面有尖锐碎石时建议在垫下铺防潮地布（footprint）。73% similarUnverified自充气垫（open-cell泡沫）舒适耐用且防潮性好，但收纳体积大且比纯充气款重约30%-50%，更适合自驾和车宿而非背负徒步73% similar
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