Horsehair Braid is a type of crinoline netting that is now manufactured from nylon or polyester. This stiffener is used to give body to hemlines and puff sleeves, as well as adding decorative flair to hats and costumes. It comes in a variety of widths.
Gertie's New Blog for Better Sewing: Shaping a Neckline with
Horsehair Braid Hem - Professor Pincushion
Gertie's New Blog for Better Sewing: The Magic of Horsehair Braid
Horsehair Braid, Bendable Netting, 1 wide, White
How to Hem with Horsehair Braid {A Tutorial} - The Simple Life
Hemming With Horsehair Braid - Boo and Lu
Orchid Purple Threaded Horsehair Braid / Crinoline Trim FREE
4 Wide Crinoline Webbing Horse hair Trim Braid for Sewing Polyester
Horsehair braid question : r/HistoricalCostuming
Polyester Horsehair Braid - B. Black & Sons Fabrics
25 Yards of Hard Horsehair Braid with Gathering Thread, 2 Wide
Horsehair Braid 6 - Black.