Do you know the properties of Lycra fabrics(1)?

Unlike most spandex yarns, Lycra has a special chemical structure that prevents mold from growing in a heat-sealed space after being wet with water. Therefore, Lycra is called a "friendly" fiber, not only because it can be thoroughly integrated with natural and artificial fibers, but also can increase the comfort, fit, freedom of movement and longevity of fabrics or clothing. ​

Lycra can be freely stretched 4 to 7 times, and quickly returns to its original length after the external force is released. It cannot be used alone, but can be interwoven with any other man-made or natural fibers. It does not change the appearance of the fabric and is an invisible fiber that greatly improves the properties of the fabric.