Spandex generally accounts for about 5% in clothes to provide elasticity, and it is the most commonly used fiber to provide elasticity.

Spandex can be used in garments that can be stretched to meet comfort requirements. Such as: professional sportswear, fitness clothes and sportswear, diving suits, swimming suits, swimsuits for competitions, basketball suits, bras and suspenders, ski pants, discos, jeans, casual pants, socks, leggings, diapers, tights, belts, underwear, jumpsuits, spandex underwear, suspenders for male ballerinas, protective clothing for surgery and protective clothing for logistics forces.

The proportion of spandex used in ordinary clothes is very small. In North America, it is rarely used in men's wear, but more used in women's wear. Because women's clothing requires close fitting. When in use, a large number of other fibers, such as cotton and polyester blends, are added to minimize the gloss.