"Boiled wool" refers to a fabric made by washing and agitating wool fibers, resulting in a tightly woven material that is thick, warm, and more durable.
Sentences with «boiled wool»
The fabric feels more like a wool knit than I'd expect of boiled wool. (littlespruceorganics.com)
European Wool Diaper Covers are made out of European boiled wool. (clothdiapergeek.com)
It's boiled wool so nice and dense, but not super heavy or itchy. (alreadypretty.com)