[This review was collected as part of a promotion.] The perfect pair of Stainless Steel Tumblers. These are not only super easy to use and optimized with their straw technology, but they keep my drink cold or hot far longer than most other Tumblers. As long as the straw is closed leaks will never be a problem. Overall, my new favorite drink holder.

[This review was collected as part of a promotion.] I got the Ello Oasis Go 30oz tumblers and I really love them. The design is super cute and feels higher quality than a regular tumbler, and the straws aren’t just basic clear ones, they actually look nicer. I love that they’re truly leak proof, so I don’t have to worry about spills, and they keep my drinks cold for hours. On top of that, they’re dishwasher safe, which makes cleaning so easy and they fit perfectly in my car cup holder, which makes them super portable. Honestly, they’re sturdy, practical, and look great perfect for everyday use!

[This review was collected as part of a promotion.] Durability is guaranteed the materials is good quality, price is within the reach of the consumer,quality of guaranteed quality is a good acquisition, it's functionality is modernas relevant to dairy life,the designs is created in accordance with modernity.

[This review was collected as part of a promotion.] I received the Ello Oasis 30oz Tumbler free from Influenster in exchange for my honest review, and I’ve been loving it! It keeps drinks cold for hours and hot drinks stay warm just as long. The size is perfect for all-day hydration, and the design is sturdy and durable without being too heavy. I also like the sleek look and the lid seals well to help prevent spills. Definitely a great tumbler for everyday use or travel!

[This review was collected as part of a promotion.] This beverage tumbler is actually amazing. Great quality to keep beverages cold. It has a great attached handle for ease of carrying. Easy to disassemble for cleaning and nice colors. But my absolute favorite part is the hideable straw enabling you to completely close the lid for safety and to prevent any spills. Great product.

[This review was collected as part of a promotion.] I really like this tumbler—it’s sturdy, easy to clean, and the handle makes it so convenient to carry around. It keeps my drinks cold for hours and doesn’t leak when sealed properly. The size is perfect for daily hydration, and it fits well in my car cup holder.

[This review was collected as part of a promotion.] These are amazing! My newest favorite water bottle! The colors are beautiful and match so good. But my favorite part is the straw. I love a straw cup but hate how they are not spill proof and this cup was able to fix all of that! The straw has a feature that allows it to fold away making it completely spill proof and that is such a unique feature I haven’t seen yet. The handle is also an amazing feature!The only thing that could make it better would be a rubberized boot. I highly recommend this is everyone!!! I will recommend again and again.

[This review was collected as part of a promotion.] The Ello tumbler has a tapered base and a retractable straw mechanism. Its swinging handle makes it easy to carry, and it fits conveniently in my car's cupholder. The retractable straw mechanism is quite impressive. It uses a sliding system that adjusts the straw to your desired height. When you fully rotate the mechanism, it seals over the straw to prevent spills. At first, I thought this mechanism would be hard to clean. However, the straw is removable, and you can rotate the mechanism to simplify hand cleaning under the cap. Personally, I still suggest using a dishwasher to ensure no residue is left behind. I've used it for water, pre-workout drinks, and protein shakes without any clogging or leaking problems. Only time will tell if it lasts long-term, but I'm really impressed.

[This review was collected as part of a promotion.] As someone who hates the straw sticking out (for hygiene reasons) and needing to buy a straw cover, I absolutely love this design! It’s so cool! It’s easy to use and is 100% leak proof which I love! The underside of the lid is a little complicated to clean because of the straw mechanism, but I hand wash so it’s not a big deal. The cup is apparently dish washer safe though which is great! My only other nitpick is that I’d love if it had a rubber bottom so the metal wouldn’t be right on a hard surface.

[This review was collected as part of a promotion.] I cannot say enough about how fantastic these cups are! My kids take them to school and it’s finally a straw cup, with a handle, that doesn’t leak! They’re sturdy and solid, and keep beverages cold for several hours. They’re convenient to take for a day in the car or a day at school, and the colors are beautiful! These tumblers are so great, that my teenager hasn’t slapped a ton of stickers on it yet because she says it’s too pretty! We need more!!!