If you are looking for a cooler that holds ice for hours or days and is undefeatable. You need a Yeti. A cooler that they describe as indestructible with superior ice retention. The Yeti cooler is your on the go cooler for a day at the beach, a 3 day camping trip or whatever else that comes up in the Dutch backcountry when ice retention becomes really important.
Yeti makes a lot more than just coolers. Check out their products.