The Rambler Lowball is the mini version of the tumbler but unlike the Ozark Trail which is 12 ounces, it is only 10 ounces. But when it comes to keeping beverages cold, the Ozark Trail Tumbler is more dependable. Other great things are that they both fit in drink holders and are easy to grip… Continue reading Ozark Trail Tumbler $14 97 Choose from 11 Colors See Our Stanley Comparison & Video