QRQ30-
The AL in the bottle is 3x's thicker... it gives it much more insulating capability compared to a normal al can. It is supposed to keep your Ice cold beverage , colder- longer. This would be better than the plastic bottles they sell down here in stadiums (if it really works).
That is what the article says anyway. I hadn't thought of Brew's idea... very clever and very smart. it could be brought to the beach as well. Down here it is illegal to have glass on the beach.
Does the link I gave not work if you are not an AOL member?