Mettler 100% Polyester 23/2 Extra Strong Thread Small Spools
100% polyester thread that holds its promise, and the name says it all:
EXTRA STRONG. It keeps together what belongs together.
The thread is created for seams that withstand supreme stresses themselves; exactly the right sewing thread for processing leather, denim, or sewing buttons. The extra strong sewing thread gives reliable robustness and resistance to seams sewn by hand or with a sewing machine.
Small Spools contain 30m (33yds). We recommend size 90/14 or 100/16 machine needles, usually Universal or Leather. 
