"And it's the little things as well like getting the right-length trackpants, for example. It all sounds a bit simplistic, but netballers are not the traditional shape and so they need a more individual approach when they get things made."
Castle refused to reveal how much the deal was worth but said it would mean more money for the Netball New Zealand coffers.
"It's a more financially beneficial arrangement."
The new match dress will not be unveiled until October, when the international season gets under way.
Netball New Zealand has yet to confirm the test schedule for 2012, but it is understood matches that were originally slated for late September have now been postponed until October, with the Constellation Cup series with Australia likely to be combined with a tri-series involving England.