Spandex is a synthetic fiber that is known for exceptional elasticity. It's a long chain of polymer (polyurethane) and is known for its elasticity. It is stronger and more durable than natural rubber. Other names for this fabric are Lycra or Elastane. It's well known for it's ability to revert back to its original shape after being stretched. It is known as a "wonder fiber" because it can stretch more than 100% and snap right back into shape. It's estimated that about 80 percent of today's garments have a bit of spandex in them. For clothing, spandex is usually mixed with cotton/rayon/polyester or nylon.
A word of caution: Spandex can be easily damaged by heat so requires different care. Recommendations include hand washing or use of the gentle/hand wash cycle in your machine. Use mild detergent. No bleach or chlorine. No fabric softener. Don't rub the fabric together. Don't wring. No ironing. No dry cleaning.
