YETI Rambler 12 oz Colster Slim Can Insulator — Rescue Red, Double-Wall Vacuum Insulation & Load-and-Lock Seal

The YETI Rambler 12 oz Colster Slim Can Insulator in Rescue Red keeps slim cans and seltzers icy cold while preventing condensation and accidental spills.

This slim Colster is a purpose-built insulated sleeve designed to fit today’s narrow 12 oz slim cans—think hard seltzers, canned wine, and other tall, skinny beverages. Constructed from YETI’s thick-gauge steel and finished in a durable Duracoat color, it focuses on temperature retention, durability, and a secure seal so your drink stays cold and your hands stay dry. Note: this version does not include the Stash Can insert that older sets sometimes shipped with.

How does the Colster keep a slim can cold?

The Colster uses double-wall vacuum insulation to slow heat transfer between the can and the outside air, preserving chill longer than an uncovered can. The Load-and-Lock gasket clamps around the can’s rim to improve contact and block warm air.

• Double-wall vacuum insulation reduces heat conduction.
• Load-and-Lock gasket secures the can with a simple quarter-turn.
• Snug internal diameter minimizes air gaps for better cooling.

Will it fit my drink — which cans and bottles work?

It’s sized for most 12 oz slim cans, including slim hard seltzers and canned wine formats. Fit can vary with nonstandard shapes, so very tapered or unusually tall cans may not seat perfectly.

• Designed for 12 oz slim cans and many spiked seltzers.
• May accommodate some narrow bottles, fit dependent on shape.
• Measures approximately 2.25 in diameter by 6 in tall for reference.

How easy is it to use and clean?

Using the Colster is straightforward: place a can inside and twist the Load-and-Lock gasket a quarter turn to secure it. The stainless-steel body and Duracoat finish are built for frequent use and the whole unit is dishwasher safe for simple cleanup.

• Load-and-Lock gasket locks with a quick quarter-turn action.
• Dishwasher-safe construction for low-maintenance cleaning.
• Duracoat finish resists chipping and cracking from everyday wear.

How rugged is it for outdoor use?

YETI’s thick gauge steel improves impact resistance versus thinner-walled alternatives, and the Duracoat color offers a hard-wearing exterior that stands up to outdoor conditions. It’s built to travel to campsites, beaches, and backyard barbecues without showing easy wear.

• Thick-gauge stainless steel improves strength and durability.
• Duracoat finish designed to withstand rough handling.
• Sealed design prevents condensation and protects surfaces.

Who is this for? If you regularly enjoy slim-format canned beverages—hard seltzers, canned cocktails, or narrow canned wine—and want a low-fuss way to keep them cold while avoiding condensation, this YETI Slim Colster is made for you. It’s a good match for people who spend time outdoors, host social gatherings, or simply prefer their drink chilled and dry. Keep in mind this listing is for the Colster itself in Rescue Red; the internal Stash Can accessory is not included.