I had to laugh at this candy bar. All I can imagine was some sort of aeration kafluffle at Hershey's one day, ruining all of the milk chocolate bars.
"Quick! Call the marketing department and get them to design a wrapper for this bar! We've got to do something to save this chocolate. We'll even charge the regular amount for the bar with all that extra air."
PS. It wasn't that good. No that I love Hershey's anyway.