Missed costume in Lumiere?

[Gathæryx]

Watching another gameplay I noticed that I have missed a costume (Baguette) in Lumiere. Is there any way to get it on the same save file (Like maybe NG+)? Or would I have to start a new save if I want all costumes? (No spoilers please)

[Crimsomrider]

The only outfit in Lumiere is Gustave's Crimson Uniform, obtained by bringing the uniform of Sophie's teacher to his son. The Baguette outfit is found in the Spring Meadows by defeating a mime.

[JDPUK]

Originally posted by Crimsomrider:

The only outfit in Lumiere is Gustave's Crimson Uniform, obtained by bringing the uniform of Sophie's teacher to his son. The Baguette outfit is found in the Spring Meadows by defeating a mime.

I have this uniform, how to I wear it, don't see an option for changing costumes?