Ban-Rol - 1" width
Ban-Rol - 1" wide
Ban-rol, Monofilament Stabilizer, Armoflexxx - they're all the same (in my book).
First introduced to this product as "Armoflexxx" in Pants for Any Body by Palmer & Pletsch, I've used it in my dressmaking and all my own garments ever since. It bends with you, yet pops right back up for a crisp, clean, firm waistband.
You can also use it in conjunction with elastic for part of your waistband for a bit of 'after-dinner growth".
Complete step-by-step directions available in PDF for $2 available at:
https://www.londas-sewing.com/product-page/waistband-magic-crisp-waistbands-using-monofilament-stabilizer
See Video at: https://youtu.be/ZV1bkV61JSA
Use to make great rolled hems with just a sewing machine following the steps as shown in this video of a friend of mine... https://youtu.be/-63DxAaqVBg