Still, Yeti generally offers less insulation time than Stanley, although the exact figures depend on the bottle size. The Stanley bottle featured in this comparison (IceFlow) is not a member of the brand’s famous Classic lineup and, as such, can’t maintain the temperature of drinks for as long as those bottles can.

When directly compared, the 40-ounce Stanley cup feels lighter and slimmer than the all of the Yeti tumblers with a built-in handle. I think its lid is easier to put on and take off than the Yeti, but more involved to clean.

With Stanley, you'll only get a handle on the 30-ounce or larger size tumblers. Yeti also comes in a variety of peel-resistant DuraCoat colors that won't peel or crack over time, even with frequent dishwashing. We also like that you can personalize your Yeti Rambler (a great option for gifting).

While the Stanley lids might spill more than the Yeti ones, they are definitely much more useful. Stanley lids have the option to be a sip top or a straw top, and it's as easy to switch as a quick rotation of the center slab. It also gives you the option to completely close the lid, although it does require you to take the straw out.