Unverified83% confidenceDecision RuleTime unknown

面料选含氨纶4%-8%的棉+弹力混纺，纯棉（0%弹力）虽透气但下蹲、抬腿受限会限制学步动作发展；氨纶过高（>10%）则透气性下降易捂汗

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83%

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Unverified内搭背心选氨纶含量5%-10%的莫代尔或棉+氨纶混纺，贴身不闷汗且水洗后不易变形；纯棉（氨纶0%）背心洗后领口和下摆会松垮变形86% similar Unverified纯棉更亲肤吸汗但弹性差、易缩水变形；添加氨纶弹力好且耐洗不变形，但吸湿透气性略降——贴身内穿选高棉低氨纶（棉95%+氨纶5%），外穿活动款可接受更高弹力85% similar

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