Designed to keep drinks cold or hot for hours, the 30 oz Rambler Tumbler has amassed over 51,000 positive reviews, which is a testament to its popularity and function. The tumbler is constructed ...

I have the 30-ounce option ... Is now a good time to buy the Stanley tumbler? The Stanley IceFlow isn't as expensive as the Yeti Rambler, but it's not the cheapest water bottle out there either ...