The term 'Rain Coat Type' can be summarized by the crossword solution of 'OILSKIN', which is a type of waterproof fabric. OILSKIN is made from cotton fabric that has been treated with oil, wax, or other waterproofing agents to make it impermeable to water. It is commonly used to make raincoats, jackets, and other outdoor apparel. OILSKIN is also known for its durability and resistance to wear and tear, making it an ideal choice for outdoor activities.