One of the founding principles of all choirs is that of a team ethos. To help foster that ethos all members of the Milli Youth Choir are required to wear Milli polo shirts to all activities. In addition to that feeling of belonging the shirts have the added benefit of advertising the choir and is vital in the recruitment of new members. The shirts cost between £12.50 and £15 dependant upon size and can be ordered via the Musical Director.

​Boys and girls are required to wear trousers, and shoes should be comfortable enough to allow for long periods of standing.
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Personilised hoodies at are also available on request from £23 but are not compulsory.