Unverified83% confidenceDecision RuleTime unknown
防晒指数看UPF值而非面料厚度，UPF50+可阻挡98%以上紫外线；深色、高密度编织的速干面料UPF通常更高，但深色吸热，户外正午长时间运动应在UPF与浅色散热间权衡
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Unverified透气性和防晒指数存在矛盾：高UPF往往靠加密织物或涂层实现，密度越高越闷热。夏季选UPF40+的疏松网眼结构比UPF50+的致密涂层款更适合大量运动，涂层款透气差且水洗后防晒性能衰减快89% similarUnverifiedUPF防晒等级越高（涂层/高密度织造）通常越闷热，速干透气与UPF50+难以兼得，热带地区户外优先选透气快干而非顶级防晒89% similarUnverified防晒指数与透气性存在天然矛盾：UPF值越高通常织物越密实、透气越差；夏季运动场景优选UPF40+的透气网眼款，静态遮阳（如逛街）可选UPF50+的密织款89% similarUnverified遮阳率优先看UPF值，UPF50+可阻挡98%紫外线；但高遮阳率银胶面料透气差，夏日午间围合后内部闷热，需搭配可开合通风口89% similar
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