Here's what I know about it:
1) It's solid color knit fabric
2) It's about 14" wide
3) It's stretchy in that ribbed sort of way. People use it for sweatshirt bands and cuffs.
4) It's a seamless tube... so you can cut it lengthwise and have 28" wide fabric, or not... we used to make no-sew stretch skirts and tube tops with it before.
5) It's cheap. Like $2 a yard.
Am I a crazy person, knowing that this stuff exists? Am I calling it the wrong thing? Any suggestions for how I could find it online? I tried the joann and hancock websites, I come up with nothing. I'm having a hard time googling it because anything with the word "knit" in it comes up with pages about knitting.
I sometimes feel like fabric stores exist solely to provide fleece for throw blankets these days.