Side seam moccasins are the oldest known type of moccasins from the Great plains. During the first half of the 19th century, they were the only type of shoes worn by most of the Great plains and Plateau tribes. They consisted of a single piece of leather and had soft soles. Some of them were decorated with quill and beadwork. Very often they were made for trading purposes. Winter moccasins with the fur on were also made following this pattern.