YLI Wonder Invisible Smoke Thread

Invisible thread is used on the top (through the needle) normally with a thread such as a 50 weight or 60 weight cotton thread in the bobbin. We do not recommend using invisible thread in the bobbin.

Tex 8 Wt 106 .004 Nylon Monofilament 2000yd spool

Wonder Invisible is a very popular thin, clear monofilament. Use it for stitch-in-the-ditch, hand or machine applique, quilting when you don't want the thread to show, apparel hemming. Contrary to widespread misinformation, Wonder nylon monofilament will not melt with a home iron - but we also offer a Poly version for those who refuse to believe.