What is worsted spun yarn?

Cashmere is a type of wool. Cashmere fibre is collected from cashmere goats. Worsted yarn is the tightly twisted woolen yarn spun from long-staple wool. So a tightly twisted cashmere yarn is called worsted cashmere.

Just as a caution in case you are buying cashmere. There is a wool act which describes what type of wool is marked as cashmere.

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