The YETI Rambler Colster brings the power of modern science to the koozie. This evolution keeps the contents of your 12-oz. can or bottle chilled for hours. It's made of durable and rustproof kitchen-grade 18/8 stainless steel. Double-wall vacuum insulation and ThermoLockTM Gasket lock in the cold. Plus, the heavy-duty stainless steel walls are sweatproof to help you keep your grip. 4.9" H X 3.1"