These threads are bundles of yarn (usually polyester) which have been bulked by one of several mechanical methods. Textured threads have a soft hand and good bulk when relaxed. They are recommended for many chainstitch, overlock and serging operations, but are not recommended for lockstitch sewing.

Economical -- Lowest cost synthetic thread
High bulk -- Excellent seam coverage with less thread
High Elongation -- Seam extensibility for stretch fabrics
Durable -- Seam strength and color retained after repeated laundering
Regular Specification: 150D/1, 150D/2, 300D/1, 300D/2, 600D/1