Yes, good gaskets matter, but not as much as the cooler itself.

A tight seal keeps warm air out and cold air in. If your gasket is thin, flimsy, or warped, you’re losing ice faster than a YETI with a leaky lid. But here’s the thing: a cheap cooler with a perfect gasket still loses to a rotomolded cooler with a mediocre gasket. The insulation in the walls does the heavy lifting.

On a high-end cooler, a bad gasket is a real problem—it’s the weak link. On a budget cooler, even a great gasket won’t save you much. So don’t overthink it. If you’re choosing between two decent coolers, yes, go for the one with better gaskets. But don’t buy a cheap cooler just because it seals well.

Most cooler failures aren’t from gaskets—they’re from opening the lid every hour. That’s where you really lose ice.