I like isacord poly and get it from discountembroiderysupply.com. Great service, lots of products and free shipping! I lso love Superiors Magnifico (which is on sale for June at superiorthreads.com). They are large cones and hoping they will someday put it on smaller cones. I bought some of the colors I think i will use the most but have tons if Isacord poly. Stay away from rayon