SRTX | 20,176 followers on LinkedIn. Powering a better future for textiles | SRTX builds new materials and software to enable better textiles. SRTX is best known for its first technology, Sheertex, a knit made from one of the world's strongest polymers which has disrupted hosiery through impossibly strong pantyhose. SRTX is best known for its first technology, Sheertex, a knit made from one of the world’s strongest polymers which has disrupted hosiery through impossibly strong pantyhose.