The name Tweed comes from the Scottish word tweele (woven cloth in a twilled manner). The original name actually came about in a funny way. In 1830, a UK merchant received a letter from a Hawick business about some tweels. The merchant misinterpreted the writing, thinking it was a trade name from the river Tweed located in the Scotland’s textile areas. He later advertised the name as Tweed, thereafter the rest is history. The material is a rough woolen fabric that is woven together and the color effects come from twisting different pattern into a two or three ply yarn. Tweed is usually used for informal outdoor activities because of the durability and being moisture resistant. With that said, I'll have to put a tweed coat in a timeless piece category.