Why Didn’t Sombody Invent This Sooner?

There are places where an ice chest just isn't practical, but you want cool beverages. Concerts, Mardi -Gras for instance. The Enjoi Beer Hunter jacket might be just what you need! It's specifically designed for the hunter, parade goer, or tailgater. You can carry all your and cans of beer, or whatever else you prefer.

"The Enjoi Beer Hunter Jacket is so cool it's insulated. This thing is ready with it's custom Enjoi bottle opener zipper pull and cooler pockets at wearers inside left inside and lower front two. Aside from that you get snap reinforcement at front, hideaway hood, side entry welt pockets, chest pockets, and killer hunter and hunted interior lining."

I have one simple question, Why didn't someone invent this thing sooner??