TAL Stainless Steel Ranger Tumbler Water Bottle 24 fl. Oz., Gray Steel

First and foremost I want to say how absolutely amazed I was at how well this tumbler keeps my water cold. I received it in the mail in late in the afternoon and around 9 p.m. filled it halfway up with water and then all the way up with ice. I drank a couple sips of it and left it on my headboard when I went to bed. When I woke up at 7:30 a m there was still a large chunk of ice in the tumbler and my water was still super ice cold. I couldn't believe it! It literally kept my water ice cold for almost 12 hours which is absolutely awesome to me. I really like the Sleep look of it. It has a dishwasher safe lid and straw which is pretty cool so you can easily just slip them the dishwasher. It would be really nice if the bottom was dishwasher safe but I think because it's double insulated it's not. You have to wash the Cup by hand but it's really simple and it doesn't have any weird or hard-to-reach spots. One of the things I noticed is that it has a little clip on the inside of the lid which I think was strange. So if you take the straw out the clip kind of snapshot and fills the hole where the straw usually sits. I'm thinking maybe that's for transportation purposes I don't I know for sure. However I did take the straw out and tip my whole Tumblr upside down and it did not leak at all so I think that is just a precaution so if you want to put it in a backpack or something you simply take the straw out and your cup won't spill. It seems very durable and it's not too heavy it fits nicely inside my cup holders in my car, the straw is made of plastic so it's not as easy to break. Overall I think I found my new favorite ice water and smoothie cup!