I absolutely LOVE these tumblers! Not just super cute, they serve the purpose I was looking for. I am able to close the top and throw them in my backpack that I carry to work without worry. They are smaller than my usual 52oz so I just use 2 cups if needed. The issues I had before, were the 52oz is super heavy and my shirt was always getting a little wet as it sloshed out the straw hole when walking into the building. Now I'm hands free with all cups in my bag. Another benefit is since the lid screws on, I no longer have the issue of my cup falling off my desk and having a huge mess to clean up when the lid pops off. One minor flaw that is not a big deal if you are expecting it, often when I raise the straw for the first time in a full cup, a small amount of liquid comes out of the straw and lands on the lid (think of those little fruit cups your kids have you open). Now be mindful my cups are laying down in my bag and not stsying upright after I fill them. Again for me this is super minor and worth the benefits I'm getting. All of my teacher friends want one now.

[This review was collected as part of a promotion.] Ok this is my favorite cup as of yet. The lid can thread in either direction so whichever you prefer your left hand or right you can drink from it on that side. The straw is easy to clean and remove. The concept is wonderful. We have a drink counter at work and my straw is safe and secure without anyone's hands near it reaching over. I love the design. Only bad I found it's supposed to go in the top rack of the dishwasher however it doesn't fit.

[This review was collected as part of a promotion.] I love the concept of these cups and that they keep your drink cold for hours. I fill it up with ice before I go to work and it's still full of ice and cold after my shift. I also was happy to see you can close the straw opening but, my issue is with ne filling my cup with ice, it's a struggle to actually close the straw hole since I have all the ice in there. Is it a design flaw? Not necessarily. It's because I load my cup with ice. If I cut back on the ice, it would make a difference.

[This review was collected as part of a promotion.] Me and my daughter loved these tumblers very much! I admire how beautiful they are, so great design and colours! They are very cute and convenient. I liked the idea of hidden straw that prevents dust and germs. And it is 100% leakproof due to a lock feature. İt's made from stainless steel and keeps liquids cold all day long. Great for those who takes care of hydration!

[This review was collected as part of a promotion.] I wanted to love these cups because they are so beautiful. They aren't super heavy, but the cups are metal, which I prefer. These cups kept my ice frozen for about 16hrs, so I was happy with that since I work 14hrs/day. The main problem is with the lids. I love the idea of a retractable straw, but the inside of the lid has a pretty complex mechanism in order for the straw to function. Don't get me wrong, the straw so far pops up and goes down with no issues. But the drawbacks are in the cleaning. There are so many crevices inside of the lid that I'm not able to reach everything and it creeps me out. I do soak them, but there's also an exposed metal spring inside the lid and I worry about it rusting over time. All in all, I don't think I will continue to use these just based on how long it takes to clean them and it still doesn't seem like I've gotten everything.

I love that the cup fits in my cup holder. The straw system is wonderful.

doesn't keep drinks as cold as other brands I have purchased in the past

Just as good as Owala and Stanley. I love how the straw is hidden.

These are adorable and the retractable straw is the best! They come apart easily for cleaning.

Rubber straw gets pinched inside with ice