This section is from the "A Complete Dictionary of Dry Goods" book, by George S. Cole. Also available from Amazon: A complete dictionary of dry goods and history of silk, cotton, linen, wool and other fibrous substances,: Including a full explanation of the modern processes ... together with various useful tables.
Yacht-Cloth (Yot Cloth). An all-wool fabric, twilled like serge, and finished with a rough surface, usually employed in the manufacture of men's summer suits. It is heavier than ordinary serge and piece-dyed in shades of dark blue.