These rugged tumblers are a compact alternative to a certain other buzzy brand, shoppers say — and they're truly leakproof!

this insulated 28-ounce tumbler comes with a straw and in multiple colors and patterns. It doubles as an on-the-go coffee and tea cup, thanks to the flip lid. Every size of the water bottle is ...

Every day, I fill it with ice water and it stays cold for as long as I need it to be. It's so well insulated that the ice is usually still there in full form when I'm finished with the cup.

There's nothing more invigorating than a hot cuppa in the morning – and nothing more disappointing than when your drink has gone cold. So which types of insulated cups are most likely to keep ...

Oprah herself has declared she only has eyes for this insulated Corkcicle tumbler. This triple-insulated cup is on sale at ...