Stay ice cold with our best-performing coolers: the Xtreme® series of coolers. Xtreme® Coolers like the Coleman® 50 Qt. Xtreme® 5 Marine Cooler and 100 Qt. Xtreme® 5 Cooler work hard to keep ice and your contents cold for up to 5 days in temperatures up to 90° F. Our secret? Two full inches of insulation for maximum cold retention.