How much elastic tape does one garment use? Measure the seam, apply a factor, convert with grams per metre, then cost the garment in four steps.

"Mobilon" is a trademark that became a trade name. Here is what the term means, what the tape is made of, and why the name is a poor substitute for a specification.

Quotes for TPU elastic tape arrive in kilograms, metres, yards, rolls or square metres — sometimes from the same supplier.

Clear elastic skips stitches and birdsnests because it is an elastomeric tape, not a woven one. It grips the needle, flexes under the presser foot and adds bulk at the seam line, so the fabric feeds unevenly. Three things fix most cases: attach the tape with a serger instead of a straight stitch, switch to a longer and wider stitch if you must topstitch, and never stitch the same line of tape twice.