Ignore the gadgets. Buy thick insulation.

For a week-long road trip, the single most important feature is insulation thickness. Everything else is secondary.

Coolers are simple: they trap cold air. Thicker walls and a good gasket do that. Look for 2–3 inches of foam. Rotomolded coolers (like Yeti or RTIC) are best because they’re built like a tank and the insulation is consistent. Cheaper plastic coolers with thin walls will lose ice in two days, and you’ll be buying bagged ice at every gas station.

Hard latches and a rubber gasket seal also matter — they keep the cold in and keep out dust and heat. A drain plug is nice for melting ice, but it’s not essential. Size-wise, get a 50–70 quart for two people for a week. Anything bigger is a pain to lift.

Don’t spend extra on built-in cup holders, cutting boards, or bottle openers. Those are distractions. The cooler’s only job is to keep things cold. A week is a long time — you want ice on day seven, not a fancy handle.

Future you will thank Present You for the heavy, boring box that still has ice.