Unverified85% confidenceDecision RuleTime unknown

尺寸按眉毛上方约1cm处头围周长选择：54-56cm选S，57-58cm选M，59-60cm选L；同一头围亚洲人头型偏圆，欧美品牌偏长圆，试戴时前额和两侧不能有压迫痛点

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Unverified短颈/圆脸人群应选领高≤5cm且领口不过分贴合的款式，8cm高领会视觉压缩脖子长度、放大脸型；长颈人群才适合驾驭7cm以上高领82% similar Unverified尺寸选择按部位匹配：眼部/额头选长条形（约10×25cm），膝盖/肩部选带绑带的环形款（可固定免手扶），腰背大面积选25×30cm以上方形款80% similar

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