Anyone who’s anyone and likes to drink water drinks it out of a Stanley tumbler these days. It’s the latest in a line of must-have beverage containers, and it’s so in-demand that shoppers have practically come to blows in their quest to get their hands on a limited-edition Stanley cup.

Swipe through to find out why Stanley tumblers are all that.

You can choose different styles and different sizes for different needs. There’s the most iconic style is the 40-ounce Quencher H2.0 FlowState Tumbler, but there’s also the Ice Flow Flip Straw Tumbler, the Flip Straw Water Bottle, the Quencher Travel Tumbler for kids.

Photography: Stanley

Internet influencers became enamored with Stanley tumblers, particularly the Quencher. Videos and posts touting the cups have overrun social media, with folks proudly showing off collections of dozens of the $45+ cups. TikTokers have made these tumblers the preferred vessels for WaterTok, the TikTok craze for making water taste like something more than water.

Photography: TikTok/gokuail

A lot of folks like the Quencher’s 40-ounce capacity. They say it helps them drink more water while avoiding single-use plastic bottles. There’s also a 30-ounce version, and all Stanley cups are dishwasher safe.

Photography: Stanley

Beverage sippers like the Stanley tumblers’ temperature control. The company says its cup keeps drinks cold for up to eleven hours and keeps hot drinks warm for up to seven hours.

Photography: Pinterest/Hello Sunshine

The Quencher H2.0 FlowState Tumbler is known for its convenient portability. Its easy-to-grip handle is a convenient way to carry the tumbler, and aficionados like how the tumblers fit into most cup holders.

Photography: Stanley

Savvy consumers appreciate that all Stanley products are guaranteed to be free of both Bisphenol A (BPA) and Bisphenol S (BPS), chemicals that have been linked to widespread health concerns.

Stanley makes the bottles in a variety of appealing, collectible colors and have released several limited-edition designs, which adds to the allure. Some styles— like the FlowState Quencher Tumbler in Cosmo Pink— have sold out within minutes of hitting store shelves.

Photography: Target