With Australian Ballet celebrating its 50th anniversary, Dinnigan has created a range of ballet clothes for the department store, which will carry her ethereal and vintage aesthetic that she is famous for, according to News Ltd.
The price range will be suitably more affordable than her women's label, with the tutus, tops and boleros ranging from $19 to $59.
Dinnigan, who has an eight-year-old daughter and is eight months pregnant, said: "It is the romance of a little girl's dream to be a ballerina, to dance, to dress up in a tutu and role play."
The celebrated designer said she was happy to work with Australian Ballet to get a larger reach to a more junior audience, according to News Ltd.
"I wanted to design something that parents will love. I wanted to have a softer colour palette and a vintage, romantic feel," she said.
The ballet range is released next month.