stretchstof

Stretchstof is a type of textile fabric defined by its elasticity, created by incorporating elastane (also known as spandex or Lycra) into one or more other fibers such as cotton, polyester, polyamide, or viscose. The elastane portion provides stretch and rapid recovery, enabling the fabric to extend and return to its original length.

Elastane is typically used in small percentages, commonly 2–20% depending on the desired level of stretch. Blends with natural fibers, like cotton or viscose, yield comfortable, close-fitting fabrics suitable for underwear, leggings, and sportswear, while blends with synthetics, such as polyester or nylon, improve durability and shape retention. The resulting stretchstof can range from light to high elasticity, with properties including good recovery, soft hand, and variable drape. Breathability and moisture management depend on the base fiber.

Typical applications include underwear, athletic wear, swimwear, tights, and fitted apparel. In fashion, stretchstof allows close fit without restricting movement and enables seamless or slim silhouettes.

History and manufacturing: Elastane was developed in the mid-20th century, with the first commercially successful spandex fibers arriving in the 1950s. In the market, elastane is sold under names such as Spandex and Lycra. The term stretchstof is commonly used in Dutch and other European languages.

Care and sustainability: Stretchstof fabrics should be washed according to the fiber blends' guidance, typically at moderate temperatures; avoid high heat and chlorine, as prolonged exposure can degrade elastane. Drying on a low heat or air-drying is recommended. Because elastane is often blended with other fibers, recycling stretch fabrics can be challenging, though some programs target blended textiles or use recycled base fibers.