With the Rambler 20 oz (591 ml) Tumbler, your beverages will stay ice cold or piping hot longer. They're BPA-free (obviously), have a No Sweat Design to make sure your hands stay dry, and are dishwasher-safe. Plus its crystal-clear lid lets you check your drink status in a flash. Refill, anyone? Please note: Our Rambler 20oz Tumbler comes with our MagSlider lid which is not leakproof and will not prevent spills.