A koozie is the cheapest upgrade in beer. It keeps a can cold to the last mouthful, stops your hand warming the drink, and saves the coffee-table from a ring of condensation. The catch is that not all of them do much, and slim cans need a different fit from standard ones.
I have picked the can coolers worth buying, from a proper insulated stainless holder to a bag of foam sleeves for a party, and set out how to choose. Every pick links to its page on the shop, and the boxes show the current price.
The best koozies and can coolers, ranked
| Rank | Pick | Type | Best for | Price |
|---|---|---|---|---|
| 1 | YETI Rambler Colster | Insulated stainless | Keeping a can cold for hours | $25.00 |
| 2 | BruMate Hopsulator Slim | Slim-can insulator | Seltzers and slim cans | $21.25 |
| 3 | Frost Buddy Universal | Universal | One holder for every can and bottle | $39.99 |
| 4 | Thermos Stainless Can Insulator | Budget stainless | A cheap upgrade on foam | $16.75 |
| 5 | Blank Can Cooler Sleeves (12-Pack) | Bulk foam sleeves | Parties and custom printing | $9.99 |
The top picks at a glance
Swipe through the shortlist, then read the full write-up on any pick below.
What the top can coolers cost
Can coolers run from a couple of dollars for a foam sleeve to the price of a small flask for an insulated stainless holder. The extra money buys real cold-holding and build quality. Here is what the shortlist costs.
The takeaway: for one drinker who wants a can genuinely cold, a stainless holder is worth it. For a party, cheap foam sleeves in bulk are the smarter buy.
How to choose a can cooler
Three things decide whether a can cooler is worth it. Match them to how you drink and the choice is easy.
- Can size. Standard 12oz, slim seltzer cans and 16oz tallboys are all different diameters. Get one that fits the cans you actually drink, or a universal holder that adjusts.
- Material. Foam is cheap and light. Vacuum-insulated stainless keeps a drink cold far longer and feels the part, but costs more and is heavier.
- How long it needs to stay cold. Foam buys you a while, a stainless colster keeps a can cold for hours. Pick to suit a quick drink versus a slow afternoon.
- Quantity. Buying for a party? Bulk foam sleeves are cheap and can be printed. Buying for yourself? Spend once on a good stainless holder.
A cheap foam koozie is fine for a party, but a vacuum-insulated stainless holder is the one you will actually keep. Buy once and it lasts for years.
Dan Smullen, Beer Is My Life
Best Overall: YETI Rambler Colster
The Colster is the koozie that converts people. It is vacuum-insulated stainless with a gasket that grips a standard 12oz can, and it keeps a drink genuinely cold rather than just slowing the warm-up. It is heavier and pricier than foam, but it is the one you will still be using in five years. For a single drinker who wants a can cold to the last sip, this is the pick.
- Vacuum-insulated, keeps cans properly cold
- Tough stainless build that lasts
- Load-and-lock gasket grips the can
- No sweating on the table
- Pricey next to foam
- Fits standard cans, not slim ones
Best for Slim Cans: BruMate Hopsulator Slim
Seltzers and slim cans do not fit a standard koozie, and that is exactly what this solves. The Hopsulator Slim is insulated stainless sized for 12oz slim cans, and it comes with a puck and a lid so it doubles as a tumbler. The pick if your fridge is full of slim cans.
- Sized for 12oz slim cans
- Insulated stainless keeps drinks cold
- Includes a freezer puck and lid
- Doubles as a tumbler
- Not for standard fat cans
- Puck needs freezer time to work best
Best Universal: Frost Buddy Universal Can Cooler
If your household drinks a bit of everything, the Frost Buddy fits standard cans, slim cans, 16oz tallboys and bottles with an adjustable insert. It is insulated stainless and holds cold well, so one holder covers the whole fridge. The pick when you do not want to own three different koozies.
- Fits standard, slim, 16oz and bottles
- Insulated stainless build
- One holder for the whole household
- Screw-down lid keeps it secure
- Adapter parts are easy to misplace
- Bulkier than a single-size holder
Best Budget Stainless: Thermos Can Insulator
A step up from foam without the premium price, this Thermos stainless insulator fits a standard 12oz can and keeps it cold far longer than a sleeve. It is the sensible pick if you want proper insulation but do not want to pay flagship money. Simple, effective and cheap.
- Real stainless insulation on a budget
- Fits standard 12oz cans
- Trusted Thermos build
- Great value upgrade from foam
- No lid or locking gasket
- Standard cans only
Best for Parties: Blank Foam Sleeves (12-Pack)
For a barbecue or a wedding, you want cheap koozies by the dozen, not one flashy holder. These blank foam sleeves come in a 12-pack, collapse flat and can be printed or decorated for the occasion. Not much insulation, but the right tool when quantity matters more than performance.
- Cheap by the dozen
- Collapse flat for storage
- Blank for printing or decorating
- Light and easy to hand out
- Only modest insulation
- Foam wears out over time
Other koozies and can coolers worth a look
A few more depending on can size and how many you need:
- Frost Buddy Universal Can Cooler – Fits Slim Cans a slim-can version of the Frost Buddy.
- The Standard 2.0 a sleek insulated holder if you want an alternative to the YETI.
- PartyPrints 25 Pack White Blank Can Cooler Sleeves a 25-pack of printable white sleeves.
- PartyPrints 100 Pack Black Blank Can Cooler Sleeves a 100-pack for a big event.
Which can cooler should you buy?
For yourself, buy once and get the YETI Colster, or the BruMate Hopsulator if you drink slim cans. If your household drinks a bit of everything, the Frost Buddy Universal covers all of it. And for a party, skip the fancy stuff and grab a pack of foam sleeves.
Browse the full range on the koozies and can coolers page, or see the parent beer coolers section for more.
Can cooler FAQs
Do koozies actually keep beer cold?
Yes, though how well depends on the material. A foam sleeve slows the warm-up for a while, while a vacuum-insulated stainless holder like the Colster keeps a can genuinely cold for a couple of hours. The main job is stopping your warm hand heating the can.
What is the difference between a slim can and a standard can cooler?
Slim cans, like seltzers, are taller and narrower than standard 12oz cans, so a standard koozie leaves them loose. Buy a slim-specific holder for those, a standard one for regular cans, or a universal holder that adjusts to both.
Are stainless koozies worth it over foam?
If you drink at home or on slow afternoons, yes. Stainless keeps a can cold for hours and lasts for years. Foam is fine for a quick drink or a party where you need lots of cheap koozies at once.
Can you put a bottle in a can cooler?
Some can, some cannot. Universal holders like the Frost Buddy include a bottle setting, while single-size can insulators are shaped only for cans. Check the listing if you want one holder for both.
