Many of the charts & tables found on this site are PDFs.

The Ultimate Extreme Marine from Coleman and the expensive Frigid Rigid hold ice longer than comparably sized portable coolers from Igloo, Rubbermaid, and Icey-Tek.

Shown in the foreground above are the three Coleman coolers: Ultimate Extreme Marine with wheels (left), Coleman Marine (top), and Ultimate Extreme Marine without wheels (right), the overall winner. Its interior, at right, includes a food tray and a compartment divider.

Portable coolers are a staple of American outdoor life, from camping trips to backyard barbecues. Certainly they are familiar, if not essential, to nearly every boat owner. Some smaller boats are actually designed with the cooler in mind, with space allocated under a seat, or elsewhere in the cockpit. Even if the boat is big enough to have a built-in icebox and/or refrigeration system below, some owners find it useful to carry pre-chilled drinks and food to the boat in a cooler for transfer once aboard. Then there’s the cooler for keeping bait cold, caught fish cold, extra brewskis…the possibilities are without limit. …