Core Spun Yarn:
This yarn has an outer wrapping of fibers around a central core of yarns. Quite often the outer wrapping is made out of a different fiber than the central core – for example, stretch fabrics have an inner core of elastane (Lycra) and an outer cover of a non-elastic fiber, such as cotton. These multi-component yarns are usually stronger due to the outer wrapping of the fibers, more uniform and fuller than other ring-spun yarns. These yarns are used often in both knitted and woven fabrics, especially where greater elasticity is required.