Yeti Hopper M Series Cooler

The magnetic closure is designed to create a leak-resistant, airtight seal that performs comparably to high-end zippers. Because it snaps shut automatically, you are less likely to accidentally leave the cooler partially open, which actually helps maintain internal temperatures better over time.

Yes, the magnetic closure system is engineered to be leakproof when the cooler is upright. However, it is not designed to be submerged or turned upside down for extended periods, as the seal relies on the magnetic force rather than a mechanical zipper lock.

The cooler itself is lightweight compared to hard-sided alternatives, but it will become heavy once filled with ice and beverages. Because it is soft-sided, the weight distribution can feel more awkward than a rigid cooler, so it is best suited for shorter treks from the car to the campsite rather than long-distance hiking.

Both the interior and exterior are made from durable, waterproof materials that are easy to wipe down. Use mild soap and warm water with a soft cloth or sponge; avoid using harsh chemicals or abrasive scrubbers, which could damage the protective coating.

The magnets are sealed within the material, so they do not require cleaning or lubrication. Just ensure the seal area remains free of large debris or sand to ensure the magnets can snap together cleanly and maintain a tight seal.