Our 16oz double wall & vacuum insulated stainless steel tumblers are complete with a BPA-Free lid closure and original graphics. They're both stylish and functional! Our tumblers hold temperature for hours and the 360 leak-proof lid allows you to sip from any angle We love the custom Flying Bird designs that frame the beloved birds you may recognize from some of our teas. We hope you enjoy your tea drinking experience inside and out :)