Bwahahahaha!!!
I can't stop laughing every time I see this one. Apparently there is no serious reason for it... it's a fashion statement, "launched by a group of designers working in Austria and Japan."
full story
Austrian Edgar Honetschlaeger said he decided to work with the Japanese on the project because he hoped to make the chicken label clothing essential. He said "It's something that you don't really need but everyone wants to have anyway".
Absolutely! Absolutely! Every chicken must be suited.