is the next generation of marine grade. The XP H2O is large enough to hold 327 cans, insulated well enough to keep ice for a week, built sturdy enough to withstand the abuse of a charter fishing boat, so go ahead and get yourself one!A cooler of this quality is more of an investment than it is a impulse buy. This cooler will become a member of your family. It will be there for some of the best memories in your life. While XP H2O is an interesting name, "Hercules" would be much more appropriate for beautiful creation. Enjoy your new cooler.