This is the new Argentina rugby shirt 2011 which was recently released by the Argentine rugby association and kit partners Adidas. There were two unveilings done- one the regular Argentina rugby shirt for tests and the other the Argentina Rugby World Cup 2011 shirt.
The differences in the two Argentina rugby shirts occur due to IRB regulations regarding shirts to be worn at the World Cup. Therefore the regular shirt contains the VISA logo ( as sponsors) but the other World Cup shirt does not because of the three logos regulation in force ( kit makers Adidas, IRB World Cup 2011 logo and Argentine rugby association’s logo are only permitted on the RWC top).
Photos of both Argentina rugby shirts 2011 are given below.