Ingredient

Elastane

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What is Elastane?

Elastane is a synthetic fiber known for its exceptional elasticity, often marketed under brand names like Lycra or Spandex. It is produced by reacting polyester with a diisocyanate, resulting in long-chain polymeric fibers.

Elastane is primarily used in textiles for its ability to stretch and return to its original shape, making it ideal for form-fitting clothing such as underwear and activewear. There is no significant health evidence suggesting direct harm from elastane fibers in clothing, although some people may experience skin irritation or allergic reactions.

When you see elastane on a label, it indicates the product will offer a stretchable fit, often enhancing comfort and mobility.

Commonly found in: Underwear, Blouses, T-Shirts, Sweatshirts, Pants, Sweaters

What to watch

Some individuals may experience skin irritation or allergies from elastane fibers.

Benefits

Provides significant elasticity, improving the fit and flexibility of garments.

FDA

Elastane is not regulated as it is not intended for ingestion, but is generally recognized as safe for use in textiles.

Research

There is limited research on health impacts since its primary use is in textiles and not consumer products.

Vegan

Elastane is a synthetic fiber and contains no animal-derived components, making it suitable for vegans.

Sources: Textile Fiber Definitions

Scout's take

Synthetic petroleum-derived fiber that sheds plastic microfibers during every wash cycle.

More from Scout's analyses

Elastane is a synthetic fiber that provides stretch and comfort but is derived from petrochemicals. It has a higher likelihood of plastic leaching into the environment compared to natural fibers.

from the analysis of Organic Cotton Asymmetrical Tank Top Black

Elastane is a synthetic fiber that provides stretch but contributes to plastic pollution. Its inclusion in the fabric blend raises concerns about microplastic shedding during washing.

from the analysis of Calvin Klein Men's Plaid Slim Button-Down Shirt

Elastane is a synthetic fiber that provides stretch and flexibility to garments. However, it is derived from petrochemicals and can contribute to microplastic pollution when washed.

from the analysis of Intimissimi Cotton T-shirt with Boat Neck Ultralight Cotton Dark Brown