Fortessa, Inc.: Schott Zwiesel | Part #: 0003.110948 | UPC: 646292119480
An 18.1 ounce resilient Burgundy glass. Made with Schott Zwiesel Tritan technology. Tritan glass is titanium crystal instead of normal lead crystal. There is little difference in weight and feel, but a major difference in durability. Tritan crystal can take a shock without breaking.