Waistcoat — or vest, depending on your geography — made in London, with rain-proof cotton from Scotland, plus one horn button and two brass loops from the West Midlands. The waistcoat fits true to size, and is intended to be neat and close-fitting. If you like things more relaxed, or are more likely to wear it over thicker things, then going up a size isn't a bad idea. This is cotton, but with elements like the lining and the button and buckles which are not. As such, it is best washed by hand in lukewarm water, or dry cleaned. If a washing machine must be used, a cold wash and no tumble-drying is the only option. Bonus points may be earned by using one of those clever washing potions designed for hydrophobic materials.