The thermos beverage can holder works well. It can hold a regular size can without slipping out or move around in the container. The rubber ring has two functions, one is to let you have a good grip on the can holder without slipping and it also functions to keep the beverage can snuggly in-place and not drop out incase the can turns upside down. It keeps my drinks cold for at least 1-45, minutes. Depending on how cold the drink starts off. I put the drink holder in the coldest part of my freezer over night to help start the keep cold process but I don't have to.I am super impressed with this can cooler. It is an excellent, minimalistic, design. It fits a can very snugly, but not so much that it is difficult to remove. Unlike most of the other designs out there, this is pretty slim, and does not add a lot of width to the can. These things work extremely well, especially compared to some others we have used; its held up to the Alabama heat just fine. It's a very clean, slim design, and covers just enough of the can that it doesn't get in the way of drinking. The rubber collar comes off to make for easy cleaning. I am very pleased, and plan to buy a few more. I just wish they would make one for a 16oz can, now. I definitely recommend this, even over the more expensive alternatives.Love this thing. Does keep the beverage cool for the time I need it to. The cans slid in a bit hard due to the rubber collar, but that's prob by design. If you're tired of crumbling cuzies that never last or really do well for keeping beverages cool, try this one. Great product IMHO.Best metal coozie by far. Can slides right in, no screw top, and keeps beer as cold as Yeti RTIC etc.I was skeptical to spend this much on a can coozie, but it's 100% worth the money. Easily keeps my cans cold for over an hour in Florida summer heat! Can't recommend this enough, gone are the days of a soggy falling apart neoprene coozie!!!I have 6 of these now. They are wonderful for keeping drinks cold.Been using these koozies for a long time they work just as good as a yeti and you don’t have to deal with twisting that pain in the azz top off. Every sip is ice cold!!!I’ve been using mine for years so I bought a few more recently for family & friends. I live in south Florida and can keep my drink in the car for hours and it’s still ice cold when I return!! Doesn’t get better than that in this heat!this is great. it is designed to fit American soda cans which are 355ml (uk are 330ml) so UK cans are a little short when the go in. I use a clear hair coil bobble in the bottom to raise up UK cans and it works perfectly.This cover helps keep drink cans and small bottles of water cold for longer, which is nice because I sip my drinks rather than chug them down, so my drink stays cold pretty much from the first sip to the last.I put one in my car cup holder for my gym water bottle...keeps the water colder for longer.Si buscas un can cooler que pueda tratar tu compulsión obsesiva por las marcas y por tener lo que los demás tienen, ve y busca un Yeti y paga lo que no cuesta por él.Este funciona exactamente igual, es mucho mas delgado y ligero, cabe mejor en la gran mayoría de los cup holders de los autos, y no tienes que desarmarlo cada vez que vas a cambiar la lata, lo cual dada la frecuencia con la que yo lo hago, resulta una gran ventaja.No veo de que me serviría conservar la lata fría 3 horas si nunca una bebida me ha durado mas de 20 minutos...Además este es sin duda LA MARCA ORIGINAL de contenedores aislados al vacío. Básicamente ellos lo inventaron. Por eso les llama THERMOS en general.A todo eso súmale que cuesta la mitad de lo que cuestan los otros y solo la lógica queda :)Great.If you're at all like me you’re never that far away from some sort of frosty beverage in the summer, so a good can cooler is a must during those scorching days. There is pretty hefty price tag associated with this cooler however, it does it exactly what it claims. It’s essentially the T-1000 of coolers. It has a nice thin profile which doesn’t provide much extra bulk, and the brushed aluminum design doesn’t seem to induct heat from the sun.I came away very impressed with the results so far. This will be the only can cooler I intend to use this summer and it should last a good long time, barring I don’t lose the thing.Pros:☺ Thin profile☺ Insulation (Claims 10 hours of cool time, but expect 2 or 3 at peak temps. I don’t suspect you’ll require 10 hours to finish a beverage.)☺ Quality & durabilityCons:☹ Price. I feel I have to penalize subtly for the price, even if it is the T-1000 of coolers.Overall: If you can stomach the initial price tag, you won’t regret this cooler in the long run. Recommended.Thank you very much for the 'Yes' helpful vote, and please feel free to comment or ask questions related to this product or other items I have reviewed on Amazon.Compré este producto marca Thermos despues de buscar comparaciones en internet con otras marcas mas caras, vi un video en youtube y este producto practicamente perdio pero por un grado de temperatura y para una bebida despues de 4 horas, realmente no vas a tener una bebida tanto tiempo en espera de que te la tomes, viaje mucho en carretera manejando y este producto cabe perfectamente en mis portavasos y me mantiene fria mi bebida perfectamente durante una hora que es el tiempo que tardo aproximadamente en tomarla, en cuestion de refrescos ya en el ultimo trago puede que ya no tenga gas pero estara frio tanto como al principio al abrirlo,Me gustó mucho el color carbon, y el frio no traspasa para nada.las botellas de vidrio de cervezas depende de la marca pero no he encontado una que quede perfectamente, unas o quedan un poco flojas pero aun asi es usable, y en otras la botella nisiquiera entra en el aislante, pero bueno... este producto esta hecho especificamente para latas de 355ml y cumple esa funcion perfectamente. recomendable 100% para lugares donde hace mucho calor y las bebidas se calientan mas rapido de lo que uno quisiera.