What fabric is cotton spandex? The characteristics of cotton spandex fabric, cotton spandex fabric soft, comfortable, elastic, not easy to deformation, is the first choice of close fitting clothing. The elastic fabric containing spandex has a soft hand and good elasticity. The clothing made of spandex is comfortable and casual to wear, and can also show the beauty of human body. Therefore, it is used in elastic underwear, swimsuit, sports pants and various fashionable outerwear fabrics. Therefore, cotton spandex fabric is more and more used in underwear products.