Lycra is a synthetic fiber known for its exceptional elasticity. It was invented in 1958 by chemist Joseph Shivers and is often used in clothing to provide a comfortable fit. Lycra is commonly blended with other fabrics, such as cotton or polyester, to enhance stretch and flexibility, making it popular in activewear and swimwear. This material is also known by its brand name, Spandex, in the United States. Lycra garments can stretch up to five times their original size and return to their original shape, making them ideal for activities that require movement, such as gymnastics and cycling.