Waterproof fabric was invented by Charles Macintosh in the 19th century. Gore-Tex fabric introduced major improvements, being thin, strong, durable and waterproof yet breathable. There are two main types - born waterproof fabrics which are waterproof during production, and acquired fabrics which are made waterproof during post-processing. Waterproof fabrics allow vapor to pass through while preventing water droplets, keeping the wearer dry. Samples of waterproof fabrics are shown from a Chinese manufacturer including polyester knitting and taffeta fabrics for raincoats, jackets and outdoor clothing.