The YETI Rambler™ Colster™ will make your tailgates and outdoor events all the more enjoyable. The Rambler™ Colster™ combines the features of a koozie and a coaster into one. Constructed with stainless steel and double-wall vacuum insulation, your beverage stays ice cold. The Colster™ fits a 12 oz. can or bottle and stays locked in with the ThermLock™ Gasket. Cheers with the YETI Colster™.