Is this sold by the yard, on a bolt? Don't think I've seen it before.
Wash-away stabilizer is sold in a variety of ways -- yardage, precut paper sizes, etc. Here is a link to the different options available for it on Amazon:
http://www.amazon.com/s/ref=nb_sb_no...solvy+washaway
Sulky makes the Solvy brand of washaway stabilizer. Vilene I think is more common in the U.K. But any brand that is water soluble will work.