There have been many improvements to umbrellas . Now ,modern umbrellas are made umbrellas are better than the old umberllas. The old umbrellas were often made of oiled silk. Modern umbrellas are made of cotton or plastic. Old umbrellas had ridding made of wood . Modern um brellas have steel ribs. Alos,the trunk of the modern umbrella extends like a telescope. It can collapse and become shorter or extend and become longer