Knit Lycra, also known as spandex or elastane, is a synthetic fiber known for its exceptional stretch and recovery properties. It is often blended with other fibers such as cotton or polyester to create a range of stretchy fabrics with varying levels of elasticity. Knit Lycra fabrics are commonly used for creating form-fitting garments such as activewear, swimwear, and leggings, as well as for adding stretch and comfort to a wide range of other garments. The combination of its lightweight, breathable feel and excellent shape retention makes it a popular choice for athletic and performance wear.