Horse or camel hair woven into haircloth may be fashioned into clothing or upholstery.
From the en.wikipedia.org
McInnis might as well have shipped the letter wrapped in haircloth.
From the denverpost.com
The Nazis used the hair to make haircloth for tailor's lining, and the gold was melted into ingots.
From the edition.cnn.com
Although horsehair generally refers to the hair of a horse's mane or tail, haircloth itself is sometimes called horsehair.
From the en.wikipedia.org
There was a covering of haircloth over the doorway, but the wind had lifted the covering so that the doorway was uncovered.
From the en.wikipedia.org
In the history of brewing, for drying the malt haircloth was spread over the kiln floor to keep grain from dropping down into the furnace.
From the en.wikipedia.org
More examples
Cloth woven from horsehair or camelhair; used for upholstery or stiffening in garments
Haircloth is a stiff, unsupple fabric typically made from horsehair and/or from the wooly hair of a camel. Although horsehair generally refers to the hair of a horse's mane or tail, haircloth itself is sometimes called horsehair. ...
Cloth made from horsehair. Used as an inner material to give shape to the chest of jackets, waistcoats and overcoats