What are the three characteristics of Sumerian sailboat?

Sumerian sailboats were typically characterized by their long, narrow hulls, which allowed for better maneuverability in rivers and canals. They featured a square sail made from woven reeds or animal skins, harnessing wind power for navigation. Additionally, these boats often had a shallow draft, enabling them to navigate shallow waters and facilitating trade along the Tigris and Euphrates rivers.