All i use is Superior Thread (as does my BF the longarmer).... The name of the thread is "So Fine"... comes in tons of colors, but mostly you end us using cream, grey, kakhi, black and othe basics.... they have a website... and the price is not all that bad for the amount and the fact that it ALWAYS works for me... This i know, from trying many other threads "i had",, and getting very frustrated... just my input... !!!