This is what we call fibres that come from the first shearing of a sheep or lamb. They have been neither spun nor felted nor part of any other finished product, and contain no more than 0.3% of impurities.
Tweed
This legendary Scottish fabric in carded wool – used to make hunting jackets in the 19th century – has long been dressing gentlemen farmers, British undergrads and even Sherlock Holmes. Robust and really very chic, tweed received the blessing of haute couture in 1950s, but has remained a timeless purveyor of winter jackets.