Hold the thread ( two strands in the thread) near your material to check out if it satisfies you. A couple of colors, two or 3 shades of the same shade are all most popular for smocking. Round knit spandex: This type of spandex is made over a circular knitting https://smoking-thread31627.boyblogguide.com/31003167/the-basic-principles-of-covered-elastic-yarn