Unverified75% confidenceTradeoffTime unknown
包体需配重（内置泡沫或轻质配重块）——太轻抛不远/受风偏移，太重砸伤被救者；理想配重让空包可漂浮且抛投距离≥15m
1
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75%
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Long-term
Relevance
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Unverified挂钩承重需按满载估算：装满小物件的多层收纳袋总重可达2-4kg，金属挂钩承重应≥5kg留余量；塑料挂钩承重虚标严重，装重物易断裂75% similarUnverified可压缩性看面料弹性回复与克重，克重<130g/㎡且高弹面料可揉成拳头大小塞入压缩袋，适合背包客；厚实功能款则难以压缩75% similarUnverified硬框（含内置支撑板或塑料骨架）打包块保形性好、堆叠不塌陷，但自重比软袋重约150-300g且不可压缩，登机箱7kg限重下应优先选软质压缩袋74% similarUnverified底座采用注水/注沙加重设计的落地款，注满后配重需≥8kg才能防止儿童拉拽时倾倒；轻量塑料底座（＜3kg）易翻，仅适合悬挂或壁挂使用74% similarUnverified折叠式（手风琴式）泡沫垫展开快、可当坐垫分段使用、能垫在帐篷底做防潮层，但折叠后厚度大（约12-14cm）占背包外挂空间；卷式收纳直径小但展开后易回卷需压重物74% similar
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