newest and most amazing, best in the cold. The Duck House NCAA 16 Mug with the most advanced freezing capability and handles and a matching color of the base, so you can enjoy in your favorite team colors and logo. Crystal Technology that keep drinks cold for hours, so you can never imprinting drinks filled with ice. Frozen with the Crystal White in a freezer until frozen for over 1 hours to dry. Dishwasher and Microwave should not be.