We bought a pair of these and loved them so much, we got two more and we used them daily. At first they were flawless but over time the seals on the lids wear out and if you use the drink spout, you get drippled on (no bueno!) . Ordered Reduce replacement gaskets, but they slip and are hard to position properly, and there's the dribble again. If you use the straw I don't think it's much of an issue but if you like to sip out the side and refuse to use the straw (I'm looking at you, spouse!) then you might find these challenging after the first year or so. To be fair I still am pretty pleased with them. They keep things icy for an awesome amount of time. Just wish the lids were screw-on or something.

These are great! Keeps drinks cold for many, many hours, even overnight.

The delivery wasn’t in a box or hiding it in anyway. A thief could see what it is and steal it

Keep my ice water cold over night.

These cups are awesome! They fit in my car cup holders and keep my drink cold even in a hot car.

Great addition to our tumblers. Nice matte colors, grip on bottom of tumbler. No drip.

I know the description says 50oz but i didn't realize how much water that was. Its pretty heavy when full, but the rubber bottom and handle is nice.

I love them, love the colors ( I bought the black and gray). Great material! The cold water last long time.

I love these cups. They actually keep my drinks cold for hours. I put ice at night around 11pm and by 6 am the ice is still whole and only has melted a little. Typically melts significantly by about 5pm. They are too heavy so easy to knock over.

While I love the design and size of this tumbler, I am very disappointed in how fast the ice melts. With cold water and ice, it still melted in less than 2 hours. I've tried multiple times and it still melts.