Nike are due to unveil England's top for the tournament on August 1, however leaked reports have claimed the strip will imitate the famed New Zealand shirt.
Ancient Maori symbols and decorations are also set to feature on the England jersey, with Key less than impressed with the design.
"I think it's a bunch of wannabes actually, there's only one team that wears black with pride and that's the All Blacks," he told 3news.co.nz.
Despite a number of complaints in New Zealand, NZRU chief executive Martin Sneddon has claimed England were granted permission on condition that they did not wear the strip if they played against the All Blacks.
"The All Blacks should take it as a compliment to them, ourselves, as a country believe in the power of the jersey, the power of the black, and maybe that is what England is trying to get their hands on," Sneddon said.
Gilbert has released a new line of rugby cleats. The Gilbert Virtuo 8S is part of the exciting new product. Check it out.
The entire All Blacks apparel line has been updated for 2013/14. Check out the New Zealand All Blacks polo.
The Nike Tiempo is a solid rugby cleat and one of few styles still made from full-grain natural leather.
The Gilbert Blitz 8S rugby cleat is a great cleat at a great price of $69.99. Get a new pair of cleats today.
A cool looking all black rugby cleat with the high performance adidas is known for. Get in the Gear!
Wear the crest of the British and Irish Lions on your t-shirt. A great look for the summer.
The All Blacks Performance t-shirt is black with hints of blue from the training jersey. Very Cool.
The New Zealand All Blacks training jersey for 2013/14. Get in the Gear!
The USA Rugby Pro Alternate rugby jersey is perfect for any fan of the Eagles. Get yours to wear during the summer Test matches.
The NEW All Blacks 2013/14 jersey has arrived at World Rugby Shop. Dare to wear the colors of the All Blacks.