Winter jackets come in several types including Parkers, trenches, bombers, and peas. Parkers are lengthy coats with a belt, trench coats are double-breasted overcoats also featuring a belt, bombers are shorter jackets with ribbed collars and cuffs, while peas are lightweight jackets that have a button-down front. These various coats are all engineered to protect the wearer from the cold and wet winter weather.