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☕ Elevate your coffee game—sip smart, spill never!
The CS COSDDI 12 oz Coffee Mug is a sleek, stainless steel insulated tumbler featuring premium 304-grade rust-resistant material, vacuum double-wall insulation for 6-hour temperature retention, and a 360° leakproof silicone lid. Designed for professionals on the move, its ergonomic narrow body fits most car cup holders and coffee machines, while the BPA-free, food-safe components ensure a healthy, sustainable coffee experience.






























| ASIN | B0865ZN8DD |
| Age Range Description | Adult |
| Best Sellers Rank | #648 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #21 in Insulated Tumblers |
| Brand | CS COSDDI |
| Brand Name | CS COSDDI |
| Capacity | 12 ounces |
| Color | 2B-Black |
| Customer Reviews | 4.4 out of 5 stars 12,299 Reviews |
| Finish Types | Metallic |
| Included Components | Lid, mug |
| Item Dimensions W x H | 6"W x 2"H |
| Item Weight | 7.04 ounces |
| Manufacture Year | 2025 |
| Manufacturer | CS COSDDI |
| Manufacturer Part Number | US-CS-COSDDI-007-B |
| Material | Stainless Steel |
| Material Features | Insulated |
| Material Type | Stainless Steel |
| Material Type Free | BPA Free |
| Model Number | CS20210107 |
| Number of Items | 200 |
| Occasion | Anniversary, Back To School, Birthday, Father's Day, Mother's Day |
| Other Special Features of the Product | Break Resistant, Double Wall, Heat Resistant, Leak Proof, Non-Slip |
| Pattern | Solid |
| Product Care Instructions | Hand Wash Only |
| Product Style | Classic |
| Recommended Uses For Product | Bathroom, Home, Nursing, Sublimation, Travel |
| Reusability | Reusable |
| Shape | Round |
| Size | 1 Count (Pack of 1) |
| Special Feature | Break Resistant, Double Wall , Heat Resistant, Leak Proof, Non-Slip |
| Specific Uses For Product | Cold Drinks, Hot Drinks |
| Style | Classic |
| Theme | Travel |
| UPC | 779303761184 |
| Unit Count | 1 Count |
R**E
Great quality and works as described.
This is a quality product. It fits perfectly in the car and doesn’t spill in my desk. It keeps drinks hot and cold. Washes well and lasts.
A**A
The Perfect Companion for Hot and Cold Beverages
I recently purchased a Stainless Steel Vacuum Insulated Tumbler, and it has quickly become my go-to drinkware for both hot and cold beverages. This tumbler has exceeded my expectations in terms of design, functionality, and overall performance. Firstly, the sleek and durable stainless steel construction gives the tumbler a premium feel. It's not only stylish but also resistant to scratches and dings, ensuring it looks as good as new even after regular use. The exterior doesn't sweat, providing a comfortable grip, whether I'm sipping on a hot coffee or a cold iced tea. The vacuum insulation technology in this tumbler is truly impressive. I've tested it with both hot and cold drinks, and it maintains the temperature remarkably well. My morning coffee stays piping hot for hours, and on a hot day, my iced beverages stay refreshingly cold without any condensation on the outside. The spill-resistant lid is a game-changer for me. Whether I'm commuting to work or running errands, I can confidently toss this tumbler into my bag without worrying about leaks or spills. The lid also has a convenient slide closure, making it easy to take a sip on the go while keeping the contents secure. Cleaning is a breeze thanks to the wide opening of the tumbler. I can easily reach all areas for a thorough clean, and the lid comes apart for more thorough washing. The stainless steel material doesn't retain odors, ensuring that each drink tastes as it should without any lingering flavors. The 20-ounce capacity strikes a perfect balance for me, providing enough volume for a satisfying drink without being too bulky. It fits into standard cup holders, making it convenient for travel. In conclusion, the Stainless Steel Vacuum Insulated Tumbler has become an indispensable part of my daily routine. Whether I'm enjoying a hot beverage on a chilly morning or staying refreshed with a cold drink in the afternoon, this tumbler delivers on its promises of durability, temperature retention, and convenience. I highly recommend it to anyone in search of a reliable and stylish insulated tumbler.
H**C
Amazing Mug
Keeps coffee hot. You don’t feel the mug being hot at all. Tight lid thats spill proof. Great balance and not easily knocked over on any surface due to a rubber base to ensure cup crips with surface. And it all still feels like a coffee cup from Starbucks.
K**R
So cute!
These cups are so cute and the perfect size for a 11-12oz liquid! I love the colors and they keep my coffee warm during the duration I’m drinking it! Easy to transport and seals closed well. The little rubber part around the middle comes off for cleaning I suppose but I just leave it on. I don’t know if it will stretch out. Looks so cute when using them! I absolutely love them! I bought 2 of them in pink and light blue! One star off only because they are not dishwasher safe and must be hand washed. But not a huge deal.
L**S
✌🏼
I absolutely love this coffee tumbler! I have been using it every single day for almost a year at work, and it still keeps my coffee hot and tastes just as good as the first day. The quality is amazing, and it has held up perfectly with daily use. Besides being very practical, it is also beautiful and stylish. It is the perfect size to take with me anywhere, and it has become an essential part of my work routine. I highly recommend this tumbler to anyone looking for a durable, beautiful, and reliable coffee cup!
D**E
White insulated cup
Love my travel coffee cup. Perfect size, easy to clean, easy to operate lid, and keeps coffee hot for hours. Con Doesn’t work as well for cold items.
M**D
What Happened?
I have purchased these twice, once years ago and that set stays hot/warm for hours, i bought a new set and not so good. In just over and hour the coffee is cold... The size is perfect, the grip is great, other than it going cold (which yhou can tell a difference between the new and the older ones by the feel of the outside, the new ones are substantially warmer than the older ones) . I hope they return to the same process they used to make the older cups...
B**6
My old one does not leak. New one does. Both hold heat well.
I bought this tumbler over a year ago and decided to buy another one. I like everything about it but most of all it didn't leak. The lid has a small flip over cover that snaps into place never leaks. This new one was slightly different. The flip closure did not snap closed. When I turned it over and water poured out in a small stream. I decided to fill it with hot water to see if the lid material would soften and mold itself to seal. I made sure the cap was firmly screw in, closed the flip cover firmly on the lip, then turned the mug over. Water came out again but then slowed to a trickle and eventually stopped. The next day, same test, leaks about 2 drops per second. Both old and new kept hot liquids hot. Started with 207 degree hot water. One hour and 15 min later about 147 degree. Still hot enough. I like the tumblers. I have confidence that one will not leak either while in the cup holder while driving or in my gym bag ( would still place it in a medium plastic bag ). The other one that leaks, place in a cup holder or in your hands only.
A**R
Excellent
This coffee thermos is great. Not only does it look nice, but it keeps coffee hot, and is easy to clean. It’s pricey, but worth it in my opinion.
Y**S
Satisfait
Tien chaud longtemps
E**M
الجوده
ممتاز
E**A
Execelente lo volvería a comprar
Genial, guarda el calor por mucho tiempo su diseño permite q no se derrame el contenido
M**Z
Excelente vaso termo para café
Excelente calidad de Vaso, no se derrama, permanece caliente durante mucho tiempo, también lo útil es la base anti-derrapante.
Trustpilot
2 weeks ago
3 days ago