As Taimei is a state-funded school, many are confused as to why the school would choose such overpriced uniforms. However, when their costs were released previous year, parents balked.
Additional extras mean a complete set could set parents back a whopping 90,000 yen.
The school announced their plans to introduce the option uniform by the Italian designer and education officials said that they are free to set the rules and uniform choices.
The Armani-designed uniforms will cost about two and a half times as much.
School uniforms are widely worn in Japan, but their aim is generally to develop a sense of school identity and avoid the burden of adolescent fashion - not add to it.
Japan has a reputation for some of the trendiest school uniforms in the world - with some schools actively encouraging pupils to be as stylish and fashionable as possible. "Why Armani?" one complained, according to a report from the local education board.
"From the intention to make a uniform as a 'school of Ginza, ' we went around department stores and Armani accepted designing it as a result", the school told the board. "Are you saying a child wearing Armani will be better developed than a child who doesn't wear it?" another user asked.
"I was surprised, and wondered why such luxury brand-designed uniforms have been picked for a public elementary school", an unnamed mother told the Huffington Post.
The uniform was brought up at a Budget Committee meeting at the House of Representatives on Thursday, with Finance Minister Taro Aso commenting on the "pretty expensive" price. Government ministers agreed that some families may not be able to afford the new clothing. As The Telegraph notes, it is just 656 ft away from Armani's head office.
It has also raised questions about the decision-making for the redesign.
The principal also said he sounded out other brands such as Burberry, Chanel and Hermes about producing its school uniform.
But parents of the students weren't on board with the new duds when they found out the prices.
The school sent a letter to parents last November in which the principal explained that the school was changing its uniform to better reflect its status as a "landmark" in Ginza, according to the Huffington Post Japan. The Armani design is scheduled to be introduced in April.
But by choosing these pricey uniforms, the elementary school has parents anxious about the ramifications of being unable to afford the uniform - and what it would mean for their child to show up to school without it.