- Materials: 100% silk - Made in Italy - Dimensions: 58" Length | Regular Width - Officially Licensed with the University of California, Berkeley - Care Instructions: Dry Clean Only Would you like to show your school spirit in a more subtle and sophisticated way? From the boardroom to tailgating, you can show your school pride in any setting with a stylish tartan necktie. Timeless Tartans' patented algorithm combines Cal's founding year and campus coordinates with its official colors to create a unique, meaningful tartan pattern you’ll cherish for years to come.