spandex or alternative

I read in a trade Mag (can't remember which) that there was a cloth that had been used that acts like Spandx but is a lot cheaper. Any one here know what its called or where I can find it? thanks Lee

 

You might be thinking of Poly Stretch. It is available in widths up to 120" for about $ 20.00/yard. Most importantly it is certified Flame Retardant.