One of the most classic pieces for the transitional looks between seasons is the trench coat. Trenches became popular amongst the upper class in the 1960's however now it is no longer just a British raincoat but is popular worldwide and to every social class. The classic trench coat is one of the most common options available to you, as it can be worn over dresses, jeans or skirts, from day to night looking sophisticated, stylish and classy all day long.