Have you seen the undies in some of the higher-end chains that have a folded edge, but no visible elastic? Well, they're using this fusible elastic! You're going to love sewing the side seams and pressing the rest! Undies done in no time at all. We have 3 widths of this elastic, 3/8", 1/2" and 3/4". I like using the wider ones on the waist and the narrower ones on the leg openings. Please order by the yard.