This stainless steel tumbler from RTIC is available for $11.99 today.
This is a 30oz size and it has excellent reviews. Perfect for keeping hot beverages hot and cold ones nice and cold.
I just picked up some similar bottles and have been so happy with them this summer! It is HOT in California and I can literally leave water in the car all day and it stays refreshing and cool. Kicking myself for not picking these up ages ago.
Head over to Amazon to grab your cup. Please note the tumbler is available today only at this price. Prices valid as of 8am PST 8/23/16 and may change at any moment.