Our 20oz skinny tumbler is made with high quality, food-grade stainless steel and is perfect for most car cup holders. The tumbler equipped with an easy slide, leak-proof lid that makes for easy carrying without worrying about spills. The tumbler also has a double-wall vacuum insulation design which is good for keeping your drinks warm or cold for a longer period of time. In addition, we use a permanent sublimation technique for a high-quality finish.