Needles designed for fabrics with elastic properties, such as knits, spandex, and lycra, feature a distinct rounded tip and a specially engineered shank. This combination prevents skipped stitches, fabric damage, and broken threads commonly encountered when using universal needles on stretchy materials. A ballpoint needle, for instance, gently pushes between the fabric loops rather than piercing them, preserving the integrity of the knit structure.
Proper needle selection contributes significantly to the quality, durability, and appearance of sewn projects involving elastic textiles. Historically, sewing elastic materials presented considerable challenges until the development of specialized needles. These needles facilitated the widespread use of knit fabrics in garment construction and other textile applications. Their availability dramatically broadened design possibilities and improved the comfort and fit of clothing.