All Polyarn Threads at Linda’s Electric Quilters brings together the complete Polyarn thread selection — a soft, wooly, bulky polyester thread used primarily in serger loopers and coverstitch machines. Polyarn (also known as woolly poly or woolly nylon) creates soft, stretchy, seam-covering stitches ideal for knit garments, athletic wear, and baby clothing.
What is Polyarn thread used for?
Polyarn is designed for use in serger and coverstitch machine loopers, where it wraps around seams to create a soft, comfortable, stretchy finish. It’s essential for professionally finished knit garment construction and is also used for decorative serging on woven projects.
Is Polyarn the same as woolly nylon?
Polyarn is a polyester version of woolly nylon thread — it has similar soft, fluffy properties and serger looper applications. Polyester construction gives it added color fastness and resistance to heat compared to nylon versions.
What colors does Polyarn come in?
Polyarn is available in a range of popular serging colors from neutrals and white to brighter accent shades. Browse the full collection for current available colors in cone and spool formats.
Can Polyarn be used in a standard sewing machine needle?
Polyarn is too bulky for standard needle use. It is designed specifically for serger and coverstitch loopers. Do not attempt to thread it through a standard sewing machine needle.

