The most widely used fabric in the world, the polyester-knits fabric, is a synthetic fabric derived from polyester. Polyester knits are famous for their stretchiness, wrinkle resistance, and durability. They are commonly used in activewear, casual clothing, and uniforms because they wick away from moisture and hold up well over time. These fabrics can be light or heavy, and they are known for their smooth texture and the ability to retain color or dry quickly.