Unverified85% confidenceDecision RuleTime unknown
看罗纹（袖口/下摆/领口）质量：优质罗纹含5%以上氨纶且织密度高，回弹好不易松垮；廉价款罗纹是纯涤纶，穿3-5次后袖口就撑开发波浪，直接影响夹克版型寿命
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85%
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Long-term
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Unverified罗纹袖口/下摆需含2-5%氨纶（弹性纤维）才能长期回弹不松垮，纯棉罗纹穿几次后易变松，选购时查看成分表氨纶含量82% similarUnverified含5%-8%氨纶或弹性纤维的领口和袖口回弹性好、不易松垮变形；纯羊毛/羊绒领口反复穿脱后会逐渐撑大失去弹性78% similarUnverified长绒棉/丝光棉POLO衫平纹光泽感强、适合商务，但需混纺2%-5%氨纶才能保证领口回弹，否则3-5次洗涤后领型松垮78% similarUnverified面料横向弹性拉伸率应≥20%（罗纹领或含3-5%氨纶/弹性纤维），纯棉平纹面料弹性不足，套头时领口易变形松垮或卡头78% similarUnverified含4%-8%氨纶（弹性纤维）的短袖修身弹性好适合展示身材，但纯涤纶无弹力款更耐洗不易变形松垮，长期通勤穿选纯涤77% similar
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