Cirkul40oz. Brink Stainless Steel Tumbler with Handle, All-Day StrawSip™, Double-Wall Insulated

The cup is great! Well built and keeps ice in it all day even with multiple refills.The Cirkul pods though, I am not impressed. Flavor runs out way too fast for what you pay for them. Maybe there is an adapter or regular lid I can get and will just use this as a regular cup from now on....

Love my 40 ounce container. Love the flavors that I purchased with it . Was using a water container but always taste plastic when I took a drink . Very happy that it keeps my water cold and that I can change the flavor any time. Very nice color blue too.

This is a great tumbler. I like the 40oz size. It keeps ice for over a day. I love the straw so I don’t have to tip it to drink. It is very sturdy and stands alone just fine without falling. It’s not heavy even filled with water and ice. The cartridges fit fine just like in their lid.

The mug is is very sturdy. I am definitely drinking more water. The sweetener they use in flavor cartridge is not tasty at all. I am disappointed about that. I wish they sold a cartridge that you could add you own flavor to.

Nice quality insulated tumbler! I love the color! Keeps beverages cold and like that I'm able to drink flavored water via the cartridges. Makes water less boring. I struggle to drink enough water daily, so having my water flavored is a huge help.

Great concept, and the weight is nice and heavy for a mug. The flavor does fade off after a while even though there’s plenty left in the cartridge. And sucking on the drink to get barely any flavor is wild. But altogether it ain’t bad cause I like water. I want my flavor though. *3

I love how it looks, its insulated, leakproof, it has a smaller base then most 40 oz cups so it fits in a lot of cup holders

Well, it works pretty well, there is some plastic paste, from the flavor cartridge,. Particularly when you have the flavor cranked down to try and make the flavor last as long as possible. I keep on tilting the bottle up in order to drink from it, which doesn’t work well when you have a straw in there trying to get the water out of the bottom. I wonder if you can take that out. But it is a nicely made bottle. The flavor cartridges control is very sensitive, a small movement can make a big difference in the amount of flavor you get.