[This review was collected as part of a promotion.] I received this product from Influenster for my honest review. I love these water bottles. Their design is very good plus it’s clean very easily . And it’s 100% non leak bottles. It makes ur water cold for a long time . Definitely recommend it

[This review was collected as part of a promotion.] We’ve been using these cups for about a month now and find them to be durable and convenient. When filled with ice they keep drinks cold all day. It’s nice for iced coffee as well as water. The lid has a retractable silicone straw which folds in when the lever on top is closed. This is nice as the straw stays clean and germ free when being carried around. I removed one star because I do find the lids are difficult to clean and I’m concerned they could become moldy. The handle makes it easy to carry or to be hooked on to something.

[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.] I’ve tried more tumblers than I care to admit, but the Ello Oasis 30 oz is officially the one. The 30 oz capacity is big enough to keep me hydrated, but not too bulky or heavy. The handle is comfy to grip, and it fits in my car’s cupholder perfectly. But what really sets this tumbler apart is its “Hide-A-Straw” technology — lets you neatly tuck the straw away keeping it clean and preventing leaks allowing you to toss your tumbler anywhere. And yes — it is 100% waterproof. I’ve tossed this thing in my work bag, gym bag, and even on the passenger seat of my car, and not a single leak. Not even a sweat ring. It seals up tight and stays cold for HOURS. I’ve had ice still rattling around at the end of a long summer day. Pros: * Legitimately leakproof * Hide-A-Straw = genius * Keeps drinks cold all day * Easy to clean (straw and lid come apart) * BPA-free and dishwasher safe Cons: * Only a few color options — would love to see more! * Straw doesn’t work great with thicker drinks (smoothies, etc.) Verdict: If you’re tired of leaky tumblers or flimsy straws, the Ello Oasis is a game-changer. Sleek, functional, and built for real life. HIGHLY RECOMMEND

[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.] These water bottles are great. They don’t spill or leak even when thrown into a bag or the back of the car. I like that it still has a straw but that you can close the straw off. The handle makes it easy to carry more than one or one with other things. Great product that will replace my other water bottles.

[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.] These tumblers are made sturdy and durable. Bring 30 oz, they hold quite a bit. It has a comfortable grip, is spill proof and the retractable straw is very convenient and on the plus side, protecting it from germs. It's very simple and easy to clean. It is stainless steel and well insulated, keeping your drink cold for quite a while. It fits in most cup holders also.

[This review was collected as part of a promotion.] Thank you for allowing me to try these out! These cups are amazing! Keeps my drinks cold literally alllll day! Very durable, easy to use, I can hide the straw to keep it safe from outside elements, very portable, light, and easy to carry and take on the go with me! Cleaning my cups is super easy as well! Great color choices too!

[This review was collected as part of a promotion.] This is my new favorite water bottle! I love the size, not quite as bulky as a 40oz bottle. It also fits perfectly into the cup holder of my car. My two favorite features are the handle and the retractable straw. I actually like that the exposed part of the straw is plastic and the straw extension in the cup is silicon. I feel like the end of the straw you drink from is more durable. And, I like being able to throw it in my backpack when it's closed and know it's not going to leak. I prefer a handle design that allows you to carry it from the top, instead of holding it from the side, so this is great. It makes it easier to carry when my hands are full. The cream and black are great neutrals! It's fairly easy to clean since the straw component comes apart. I live in the desert, so insulation is a hit or miss sometimes. But this one seems to do a decent job of keeping my water cold/cool, even if left in the car for a little while.