Works okay

The design looked like it had a flaw and I wasn’t happy with the way it looked, the straw doesn’t go down in the cup far enough and doesn’t have a tight fit causing it to come out of the fitting occasionally. It does keep the ice/drink cold for longer periods of time than others I’ve tried. I was going to return it but was going to be charged almost $13 to return it, even though their add says 30 day no hassle return. Technically it’s no hassle if you want to lose money. I don’t know if I would buy another one for the price.

Leak proof bottle

I have tried many different types of tumblers snd bottles. The tumbler from Coldest is by far the best I've ever used. I will definitely be a return customer.

Wow

I finally found a tumbler that will keep my water cold. I couldn’t believe how long this tumbler keeps my water. Definitely worth every penny. Taking this with me everywhere.