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Rambler 12oz Colster Slim Can Insulator

4.604301075268817 out of 5 stars
1395 Reviews



Rambler Colster Slim Can Insulator

A good summer night around the campfire with your best friends is something that just can't be beat. Warm seltzer? Well that can be beat pretty easily. Luckily you won't have to worry about that with this ultra-convenient insulated colster. Able to easily fit a 12oz can or bottle, it'll keep your refreshing beverage well protected from that pesky body heat of yours, so you can enjoy s'mores, sunsets, and smiles without worry.


  • Insulated colster sized for slim cans like seltzers
  • Stainless steel construction can take a beating in the outdoors
  • Double-wall vacuum insulation keeps beers and sodas ice-cold
  • Holds standard 12oz cans and bottle with ease
  • Load-and-Lock twist-off gasket keeps your bottle or can in place
  • No-Sweat Design keeps your hands dry while your drink stays cold
  • Dishwasher-safe design saves you time and stress
  • Item #YETZ01B
18/8 stainless steel
double-wall vacuum
2.75 x 6.12in
Claimed Weight
Manufacturer Warranty
5 years

Overall Rating

4.5 based on 1395 ratings

Review Summary

1 Stars - 54 reviews
2 Stars - 40 reviews
3 Stars - 57 reviews
4 Stars - 102 reviews
5 Stars - 1142 reviews

What do you think about this product?


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5 out of 5 stars

February 16, 2024

Best insulation!!!

Great insulation and all around just wonderful product and money well spent!


Originally reviewed on

4 out of 5 stars

December 4, 2023

Nice and cold

Definitely keeps a drink cold. The biggest issue we had so far is the lid. Seems to not align well all the time making it difficult to screw down tightly. Once you get it on correctly, it does a great job at keeping your drink cold. I'd say the quality is also good since the cooler was dropped on concrete (without a can in it) and there was no indication that it had been dropped. I'd give it a 4.5 if that were possible simply for the lid issues.


Originally reviewed on

5 out of 5 stars

October 29, 2023

Mi opinión sobre mí Portabotes

Excelente y de buena calidad. Los botes le caben exacto

Rubi C Franco

Originally reviewed on

5 out of 5 stars

October 27, 2023

Happy Wife

It’s great because my wife likes Sanpellegrino and they fit…. Which makes her happy… which makes me happy 😃

Originally reviewed on

5 out of 5 stars

September 28, 2023

Great for Hawaii

Keeps beverages really cold. Perfect for Hawaii. Great color


Originally reviewed on

5 out of 5 stars

September 27, 2023

Love this!

Amazing! My husband loves this so much and uses it daily

Originally reviewed on

5 out of 5 stars

September 27, 2023


Fits slim cans as expected, and I love the color. Overall great.

Jaime L

Originally reviewed on

5 out of 5 stars

September 27, 2023

Great color and finish

Great color and finish - wife complained that we didn't have one in that color, so I ordered it

Ty Boogie

Originally reviewed on

5 out of 5 stars

September 26, 2023

Great for the Beach !

Truly Keeps your Beverage AKA Beers Cold. We are beach lovers and it works


Originally reviewed on

3 out of 5 stars

September 23, 2023

Keep drinks cold OK

Keeps drinks cold enough. Don’t like that the top lip is separate. I just see it as a piece that could get lost easily.


Originally reviewed on