"Spandex" and "Elastane" are the same thing called by different names. They make any material stretchy.
A well-known spandex brand is Lycra® finding use in a variety of different textiles. Spandex or Elastane is an exceptionally elastic fiber used to give any textile a certain level of stretchiness.
Different types of Spandex vary in their stretchiness, strength and resistance to match any intended use, from day-today wear to sports wear. Different types of Spandex vary in their stretchiness, strength and resistance to match any intended use, from day-today wear to sports wear.
CHANTY uses the spandex best suited for any given lace design, so CHANTY laces can be more or less stretchy and even provide high support.