My absolute favorite thread for machine piecing. It was suggested to me by my friends at Lolly's Fabrics in Shipshewana, Indiana while I was at a quilt retreat. I gave it a try and haven't used anything else since! 

Color 2600 for light color piecing

Color 2370 for dark color piecing

Color 2692 - black

1422 yards per spool

$ 11.99