YETI® Colster Gasket Insert – Drink Fit Adaptor

Turn your YETI Colster into a multi-fit setup — no new gear required.

The TOPA FitSeal is a precision-fit adapter that drops straight into your YETI Colster, letting it securely hold a wider range of bottles with a snug, rattle-free fit.

Fits Your Favourite Bottles

Each FitSeal adapter is designed for a specific bottle shape, so you get a proper fit every time. Available for:

• Corona
• Asahi
• Great Northern
• Carlton Dry
• Vodka Cruiser
• Somersby
• Coopers Pale Ale

Simply select the option that matches your bottle before purchasing.

Built to Last

Made in Australia from ASA — a premium engineering-grade filament chosen for its toughness, UV resistance, and ability to handle heat without warping or going brittle. Whether it's out in the sun, on the boat, or in the esky bag, FitSeal is built for real conditions.

Simple to Use

• Drops in and out by hand — no tools needed
• Holds your bottle firmly with no rattling or movement
• Designed for repeat, everyday use

No need to replace your colster. Just drop in the FitSeal and you're good to go.

This listing is for the adapter insert only. Colster and bottles shown are for demonstration purposes only. Each FitSeal suits a specific bottle — please select the correct option before purchasing.

YETI® is a registered trademark of YETI Holdings, Inc. TOPA is not affiliated with or endorsed by YETI.