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Item # YET000I

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Item # YET000I

Keep your beer chill and your life will follow.

With the Rambler Colster form YETI you never have to worry about prematurely warm beer again. The double-wall vacuum insulation, combined with a ThermoLock Gasket, ensures that your 12oz beverage stays nice and cool until you're done drinking.

  • 18/8 stainless steel material
  • Double-wall vacuum insulation
  • ThermoLock Gasket
  • No sweat design

Tech Specs

18/8 stainless steel
yes, double-wall
Recommended Use:
chilling beer
Manufacturer Warranty:
5 years

Reviews & Community


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Avg. ride time: 1h 7m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Cold Beer, But High Price

  • Familiarity: I've put it through the wringer

I own four of these now and love them. It's pretty remarkable how long these can keep a beer cold even in summer heat. I'm holding a star back, however, given the price.

King of Koozies

  • Familiarity: I've used it several times

While I can't stuff it in my back pocket and pull it out when the moment is right, it does get the job done better than the rest. Great for nights by the campfire or lazy days on the river. The Colster is a must for any koozie addict.

So Cold

  • Familiarity: I've put it through the wringer

The colster is AMAZING. It kept my beer as cold as it was when it came out of the cooler. Your drink can literally stay cold for hours if you forget it somewhere or are just an abnormally slow drinker. Iv'e used the colster at the beach, camping, and just around the house, and it works everywhere no matter the temperature. It definitely works better than the regular neoprene or rubber koozies, and it looks awesome too.

So Cold

Perfect for any occasion!

  • Familiarity: I've put it through the wringer

This Colster is awesome! How I lived without it is a mystery. The price tag was initially daunting but after going with it I couldnt be happier. Ive used this thing countless times out camping, boating, and even at the park. If you are in need of something to keep your can or bottles cold look no further my friends. This is the one for you!

A Boating Favorite

  • Familiarity: I gave it as a gift but have feedback to share

At first I couldn't really grasp the need for a $30 can to put your beer can in.

But my parents asked for a few for their days out on the water. I sent them some and these are now as important as their PFD's, Sunscreen, Hats, Sunglasses and Towels.

I'm the kind of person that likes to live life on the edge and drink my beer sans-koozie. But for the folks out there that want the best product for insulating their tasty beverage, you've found the one and only. Nothing beats this and you can stop your search here.

If you've got any questions on Yeti products, feel free to drop me an email and I'd be happy to help you with the Yeti Ramblers, Colsters, Coolers and soft coolers.

Does the job!

  • Familiarity: I've put it through the wringer

Keeps cans cold! Usually my beer is gone before it's really necessary, but it definitely keeps it colder longer.


  • Familiarity: I've used it several times

It almost seemed strange how refreshing the beer still was at the last couple sips. Noticeably COLD! These things work and work exceptionally well. Very much worth the price you pay.

Avg. ride time: 2h 44m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Worth the Cost

    A friend of mine got one of these and was using it to keep a beer in her camelbak on a ride last weekend. We rode for about 3 hours in 95 degree heat, and when she took the beer out of her pack, it was still cold enough to drink. Definitely not fresh out of the cooler cold, but it was not yet warm and definitely still delicious. 3 hours in her pack in 95 degree hear, I expected the beer to be hot. Not the case! I will definitely be getting one of these!

    Perfect gift for a beer lover.

    • Familiarity: I've put it through the wringer

    Bought this as a gift for my beer loving brother in law and now i'm afraid he drinks more beer than before. #notmyproblem.
    He loves how it keeps his beer cold while out on a hot day on the lake. He's even talked his buddies into all buying some as well. I wouldn't expect anything less from Yeti. Super durable!

    Cold 'til the swill

    • Familiarity: I've put it through the wringer

    My Yeti Rambler Colster is just plain awesome. It keeps every drop of whatever the drink of choice is cold right to the end. Doesn't matter whether it is in a bottle or a can, it's in there solidly and isn't coming out until you grab another from the cooler. When temps get into the triple digits, find some shade, grab a case of something, and get a Rambler Colster to keep it and you cool.

    No brakes on the hype train!!!!

    • Familiarity: I've put it through the wringer

    This thing is unreal, I love using it.

    Perfect for every moment of every day.

    Everyone needs one.


    Nice and Cold till the last drop!!!!!!!!

      I absolutely love this Yeti Colster! I used it over the weekend and it kept my beer nice and cold on a hot day! Defiantly a great buy!