I use it for hand sewing appliques, etc. It is not an "invisible" thread, but seems about as thick as a hair! I use only the ecru for everything as its very hard to see. For hand stitching you may have to "secure" the thread on the needle before experience overcomes the problem! So for me, I love Invisafil.
I would like to hear how it is for machine sewing.
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Last edited by Kitsie; 01-06-2017 at 09:07 AM.
Reason: added info