jeans sewing thread poly poly core spun sewing thread 

jeans sewing thread poly poly core spun sewing thread       made by wrapping a staple polyester or cotton wrapper around a continuous filament bundle of polyester fibers during spinning, and then plying these yarns into a sewing thread. The continuous filament  polyester core makes up approximately 65% of the thread construction. 

jeans sewing thread poly poly core spun sewing thread      contributes to:

The wrapper of a corespunthread can be either staple polyester or staple cotton.

The wrapper gives the thread a fibrous surface that contributes to:

jeans sewing thread poly poly core spun sewing thread 

jeans sewing thread poly poly core spun sewing thread