Just saw that too. To be honest, I think that's got to be one of, if not 'the' ugliest piece of clothing I've ever seen. It cost ~$50 and has problems with moisture(look at the pics) due to the vinyl front.
Incredibly pointless and utterly douchetastic, IMO. Plus, who would want a couple pounds hanging off the front of your shirt, weighing it down... Kinda of like carrying a small animal around in your shirt pocket all day. No thank you.