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This study introduced a multifunctional integrated carbon quantum dots (CCQDs)\u2010empowered ultra\u2010tough and stable leather\u2010based gel multimodal wearable sensor (SMT\u2010TL), aiming to achieve long\u2010term stable distress signal transmission. SMT\u2010TL utilized zeolite\u2010tanned sheep leather (SMT\u2010L) as a rigid substrate, with flexible polyacrylic acid (PAA) densely filling the gaps of collagen fibers within SMT\u2010L and enhancing hydrogen bond interactions. This resulted in the fabrication of an ultra\u2010tough, ultra\u2010stretchable, multifunctional integrated, and transparent \u201crigid\u2010flexible combination\u201d SMT\u2010TL. It retained over 70% of the breaking strength (&gt;13.5\u00a0MPa) of original SMT\u2010L, while achieving an elongation exceeding 590.0%, a toughness greater than 63.64\u00a0MJ\/m\n                    <jats:sup>3<\/jats:sup>\n                    , and maintaining good transparency (a transmittance greater than 78.0% at 550\u00a0nm). The multifunctional integrated CCQDs enhanced and endowed SMT\u2010TL with conductivity and antibacterial properties, while the glycerol\u2010water binary solvent system ensured its anti\u2010freezing and moisture\u2010retention capabilities. Notably, SMT\u2010TL not only enabled real\u2010time monitoring of human motion signals but also successfully achieved stable transmission of distress signals. We believe that this study offers a new sensing material for extreme emergency communication, advancing intelligent integration of leather\u2010based wearable sensors with broad applications.\n                  <\/jats:p>","DOI":"10.1002\/smll.74594","type":"journal-article","created":{"date-parts":[[2026,7,14]],"date-time":"2026-07-14T11:55:11Z","timestamp":1784030111000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Ultra\u2010Tough and Stable Leather\u2010Derived Gel Wearable Sensor: Enabling Multimodal Monitoring of Human Motion Signals and Distress Signal Transmission"],"prefix":"10.1002","volume":"22","author":[{"given":"Jialu","family":"Shen","sequence":"first","affiliation":[{"name":"Key Laboratory of Leather Chemistry and Engineering of Ministry of Education Sichuan University  Chengdu 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