A seamless prosthetic valve comprising a continuous tubular member having an outer abluminal surface, a triple walled intermediate portion, and at least a first valve leaflet that is configured to selectively restrict fluid flow through the valve, the triple walled intermediate portion being formed by everting a first end of member over the member, whereby a double walled end is formed, and reverting the first end over the double walled end of the member, the first valve leaflet being formed by suturing the triple walled intermediate portion at a first commissure connection point.
