I was a dedicated Coats and Clark user for 50 years. Haven't bought it since they cheapened it to all polyester. My sewing shop said DO NOT use polyestes on my machine, causes static and messes up lots of things in machines. Plus it's no difference than the 5 for a $1 cheapie stuff, which also messes up machines. About once a month, I go to thrift shops and garage sales, looking for any kind of Dual Duty thread that is cotton or cotton polyester. C and C just cheapened itself and I won't use it.