Hi.. sorry, I would've replied you earlier but we just got back in.
Do you hv TOTTs? The knit headbands instructions is in there.
Next, you CAN get the fabric. I get mine from here: www.fabricdepot.com
and I'm not sure if the 50/50 would work but works the best is the 48% cotton/48% poly/4% lycra
. Click This Link
and it should take you directly to the knit page. Should you decide to buy from there, select Ribing with Lycra
. The only snag about this site is fabric width is only 15inch
. It's tubular and the length is up to you of how many ever you want/need to buy