... ) good quality and best price 2) excellent elastic recovery rate3) available for socks4) high tensionSpandex yarn tech parameterElongation ... Tension at break:≥460CNStress at 300% elongation: ≥60CNElastic recovery 300% elongation:≥96.5%characteristic of spandex yarn1,highly ... elastic, long stretch, low specific gravity2, high elastic recovery, high elastic modulus, high strength 3, high temperature ...