The 55 Quart Cobalt roto-molded cooler is rated for up to 5 days ice retention, while also being nearly 20% lighter in weight than traditional roto-molded coolers. Maybe more importantly, this cooler is also 40-50% lower in cost than those over-hyped brands. Don’t worry though, our Cobalt line of coolers still boast all the same great features of other premium roto-molded coolers. The 55 Quart Cobalt cooler is also the perfect choice if versatility of use is one of your primary goals. For this reason, the 50-60 quart cooler class is easily the most popular size across all brands of coolers. You really can’t go wrong with this choice no matter what you desired use might be.