Unverified85% confidenceDecision RuleTime unknown

选防晒功能优先看标注UPF50+（可阻隔97.5%以上紫外线），仅标注'防晒'无UPF数值的多为营销话术；浅色速干T恤防晒能力通常不如深色同款

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速干T恤category

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Unverified防晒速干裤认准UPF50+且标注紫外线透过率＜5%才有实际意义；仅标'防晒面料'无UPF数值的多为宣传，浅色薄款速干裤UPF普遍不足3091% similar Unverified宣称防晒的速干T恤应认准UPF值标注：UPF≥40且UVA透过率<5%才达到国标'防紫外线产品'标准，仅标'防晒'无UPF数值的多为营销话术90% similar Unverified浅色速干T恤的防晒指数通常低于深色同款，白色UPF往往只有15-20，户外防晒优先选深色或标注UPF50+的浅色（需额外添加抗紫外整理剂）90% similar

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