stiffness, and a tendency to deteriorate from natural body oils and hot weather. Many tailors were reluctant to use his new fabric, and had no interest in it. Charles set up his own company and eventually added vulcanized rubber to the coat in 1843, solving many of the problems. In 1853, Aquascutum introduced a woolen fabric that was chemically treated to shed water. From then on into the early 20th century, the treated wool trench coat was popular fashion rainwear in Europe and the colder regions of the United States, especially among their military circles. In the 1910s and 1920s, gas and vapor fabric rubberization techniques were patented at textile finishing mills such as the Jenckes Spinning Company, creating rubberized, waterproof fabrics that were softer, more pliable and more comfortable. Stiff raincoats made completely of rubber called "slickers" were also available, as well as raincoats made of heavy oilcloth. These raincoats and "slickers" mimicked the coat fashion of the time; long length, loose belt, high roll/convertible collar, large pockets, and were often sewn with a non-rubberized cotton or wool lining to improve comfort. Popular 1920s raincoat colors were tan, navy blue, and grey. Some of these coats were hooded, but often were not and instead accompanied by a matching rain hat. In the 1930s, cellophane and PVC rainwear was preferred by many due to the poor economy during the Depression. They were economical, since only one covering had to be purchased instead of buying multiple fashion raincoats. They came in a variety of styles, including clear translucent. In the 1940s and 1950s, DuPont Nylon emerged in the US as a durable synthetic material that was both lightweight and water-resistant; well-suited to rainwear. New coat styles using tightly woven cotton or rayon gabardine, and a treated shiny “paratroop” twill rayon for extra water resistance were also popular. Raincoats were offered in larger variety of colors like varying shades of blue, gray, bright greens, brown, or natural and could be purchased with taffeta and other synthetic blend linings. Between the 1950s and 1960s, PVC rainwear experienced a resurgence in popularity for the plastic's bright and diverse colors and futuristic look. In the early 1960s, raincoats were introduced in high visibility colors for outdoor workwear and later were offered with retroreflective accents. Use as PPE Raincoats can also be used as a personal protective equipment, particularly in areas where PPEs are in short