Unlike the Stanley cup, the IRON °FLASK comes in 34 different hues ... for up to 36 hours instead of a mere 24. When it comes to tea or coffee, a S’well can likely stay hot for up to 18 ...

The Hydro Flask Travel Tumbler has over 400 reviews at Amazon with an average rating of 4.7 stars out of five. One reviewer says, "Way better than a Stanley. I love this cup! It keeps the cold ...

Ozark's $15 cup beat out the two other well-known brands, Yeti and Hydro Flask, which were a few degrees warmer. If you haven't been hooked by the Stanley trend, where you absolutely have to have ...

The Stanley Adventure ... a open ended flask. Surprisingly, it keeps hot to warm for about 40 minutes. Also, it's bigger than your standard mug so you can make one big cup of tea that stays ...