Elastane in Clothing

Stretch can come from an elastic fiber, a knitted structure, or a flexible material with a different chemistry. Elastane, spandex, and Lycra terminology should be distinguished from fabric names such as jersey. Checking the composition alongside the textile construction explains more than assuming that every stretchy garment contains the same ingredient.

Elasticity rather than a brand name

Spandex is a generic term for a highly elastic synthetic textile fiber, not the name of one clothing brand. The source connects it with the terms elastane and Lycra and explains its polyurethane-based chemistry. Its unusual stretch makes it useful in fitted clothing, activewear, hosiery, and other products that need freedom of movement.

Elastane in Clothing: Spandex Is Usually a Stretch Ingredient in a Blend

Read the rest of the composition

Most garments use spandex alongside other fibers rather than alone. The accompanying cotton, nylon, or polyester contributes much of the surface and body, while spandex changes how the fabric stretches. Comparing two garments therefore requires more than noticing that both contain spandex: the blend and the way the fabric is knitted or woven remain important parts of the explanation.