The 40-ounce travel tumbler performs exceptionally well, especially in extreme heat. On the day I received it — with temperatures hitting 105 degrees — I filled it with ice and iced tea. After finishing the drink, plenty of ice remained. The tumbler then sat in my vehicle until late the following afternoon. When I opened it more than 24 hours later, most of the ice had melted, but several solid chunks were still floating. Its insulation clearly lives up to the claim of keeping liquids cold for 30 hours.The tumbler holds a full 40 ounces and features a heavy-duty plastic exterior that’s BPA, lead, and phthalate free. The inner chamber and straw are made from food grade stainless steel, and the screw on cap creates a reliable airtight seal. I noticed no sweating on the exterior, and the outer casing of the cup stayed at room temperature despite being filled with ice.I ordered the cloud blue version, which includes both a leak proof sipping spout and a stainless-steel straw with a cleaning brush. The handle is comfortable, and the tumbler fits easily into my vehicle’s cup holder. While I only tested cold retention, its performance suggests it should handle the advertised 12 hours of heat retention without issue.Overall, this is a durable, well-designed tumbler that excels in real world conditions.

This 40oz pink tumbler has quickly become my absolute favorite! First of all, the color is super cute and even prettier in person. The soft tea rose pink is such a fun, feminine color, and I love carrying it with me wherever I go. It looks great and feels like a high-quality tumbler that is made to hold up to everyday use.My favorite feature is definitely how well it keeps my drinks cold. I can fill it up with ice and my favorite cold drink in the morning, and it stays refreshingly cold throughout the entire day. It is perfect for staying hydrated while I’m working, running errands, or just relaxing at home. The 40oz capacity is also fantastic because I don’t have to constantly stop and refill my cup.I really love the handle because it makes carrying such a large tumbler much easier and more comfortable. The straw is another great feature and makes it so convenient to sip on my drink throughout the day. I also appreciate that it is designed to be cup holder friendly, which makes it great for taking along in the car when I’m out and about.The stainless steel construction feels sturdy and durable, while the vacuum insulation does an amazing job at maintaining the temperature of my drink. I also love that it is BPA free, which gives me extra peace of mind when using it every day.Overall, I absolutely love this tumbler! The adorable pink color, large 40oz capacity, comfortable handle, convenient straw, and incredible ability to keep my drinks cold all day make this a winner for me. It has officially become my go to cup!

This 40oz tumbler is a stylish and practical way to keep drinks at the perfect temperature all day. The vacuum insulation works incredibly well, keeping beverages cold for hours or warm when needed. The handle and cup holder-friendly design make it easy to take anywhere.The craftsmanship is excellent, featuring high-quality 18/8 stainless steel and BPA-free materials that feel durable and safe. The leakproof lid, comfortable straw, and three sipping options add great functionality for commuting, workouts, travel, or everyday hydration.It holds plenty, looks great, and performs reliably without constant refills. A dependable drink companion that fits perfectly into a busy lifestyle.

Love it!

Purchased this for myself and my daughter ended up stealing, err, I mean using it for herself. I wanted it to use while I worked out, the 40oz, I felt like, would fit the perfect amount of water I needed.For my daughter though, who only drinks water, this is perfect for her. She can put cold water in it at 7 in the morning with a few ice cubes and it'll stay cold for her all day while she's in school. The handle is easy for her to keep a firm grip and the tumbler itself isn't too bulky for her smaller frame.I switch out the straw with a plastic one because the steel one just doesn't make sense to me, I feel like it'll easily rust and I don't want those problems!Overall, it's a great tumbler that effectively works to keep your drink cold...or hot, depending on your preference.

I did a lot of research before ordering this tumbler and I’m very happy with my decision to order. I love that the straw is stainless steel instead of plastic and it’s made from high quality 18/8 food grade stainless steel. It keeps my drinks ice cold for hours, doesn’t leak and fits perfectly in my vehicle’s cup holder. The handle makes it easy to carry and it feels sturdy and well made. If you’re looking for a durable tumbler with thoughtful design and quality materials, I would definitely recommend this one!

Drinks and ice can satay cold for up to 72 hours

absolutely love this tumbler. The lilac color is beautiful, and the 40 oz size is perfect because I don’t have to keep refilling it all day. It keeps my drink cold for hours, fits in my cup holder, and the stainless steel straw is a huge plus. I also love that it’s leakproof and made without lead, BPA, or phthalates. This has honestly become my go-to cup every single day.

HUGE. this thing is a weapon if you want to use it in a fight. It is large, heavy, and well-built. I love that the metal straw includes a silicone slip-on thing (so your mouth isn't burned if you left it sitting in the sun).It also comes with a straw cleaner which is long enough to be useful (yay!). I love that the lid offers a few different drinking options. I have not tried it yet to see if it's leakproof, but with this container size and liquid on the inside... I'd recommend you consider this "leak resistant" since the drinking mechanisms are flip open set-ups.overall, this is perfect if you've got a long day out of the house and need to keep things cold or hot -- or if you just want to do wrist workouts. It's heavy!

I got this for my daughter, and she absolutely loves it. The design is attractive, the color looks great, and the overall appearance is modern and well made. The material feels high quality and durable, and it’s comfortable to hold and very easy to drink from.What impressed us the most is that it really is leakproof. She can toss it into her bag without worrying about spills. The insulation is also outstanding—when it says it keeps drinks cold, it means it. Ice lasted well over 12 hours, and the drink stayed refreshingly cold the entire time. Great quality, excellent performance, and definitely a bottle I’d recommend.

Literally one of the best tumblers I've ever had! The size is perfect for my daily water. It holds ice no issues for at least 24hours. I love that it comes with a straw that has a silicone wrap so you're lips aren't touching the metal directly. I love that it's also leak proof. I tested it when I first got it because of my kids & with everything locked it doesn't leak one bit! I love the color. The cup itself is very light weight & even with it being full of ice water it's not overly heavy. If you're looking for a tumbler that'll actually keep your drinks cold for a long period of time this is the one!

I got this tumbler for my daughter, and she absolutely loves it. It keeps her drinks cold for hours, and the insulation has been impressive. The handle makes it comfortable to carry, it fits nicely in a cup holder, and the Cloud Blue color looks great in person. While I wouldn't turn it upside down and expect it to stay completely dry, it has been very spill resistant during everyday use. Overall, it's a well made tumbler that looks good and performs exactly as she hoped.

As a Rockstar Influencer, I just wrapped up the BriteLUNE double-insulated stainless steel tumbler campaign—perfect for that hard-to-buy-for person on your Christmas list.

This 40 oz tumbler has quickly become my go-to cup for work, road trips, and everyday use. It keeps drinks cold for hours, and I love that it fits in my vehicle’s cup holder while still holding plenty of water. The sturdy handle makes it comfortable to carry, and the included straw is great for sipping on the go.The leakproof lid gives me confidence tossing it into the car or carrying it around without worrying about spills. The stainless steel construction feels durable, and the insulation does a fantastic job keeping drinks at the perfect temperature. The soft cloud blue color is also beautiful and gives it a clean, modern look.Overall, this is an excellent tumbler for anyone who wants a large, reliable travel cup that performs well every day. It’s well made, easy to use, and a great companion whether you’re commuting, working, or spending the day outdoors.

I absolutely love this tumbler! The pink color is so pretty, and the quality exceeded my expectations. It keeps my drinks cold for hours, the handle makes it easy to carry, and it fits perfectly in my car’s cup holder. The lid and straw work great without leaking, making it perfect for water, iced coffee, or any drink on the go. I’ve been using it every day and would definitely buy another one in a different color! 💕