I know this has been suggested many times and im not sure what the outcome of those posts were, but my reason for it is this:
most cosmetics in the game have 'primary' and 'secondary' rather than red, blue, black, white:
this is annoying because if i want to add the expression glasses to my red outfit, its gonna be blue 50% of the time.
Making presets for home/away would be a good fix (and very much wanted feature anyway) as it allows people to use a cosmetic just for a red/home outfit, and not for away if they dont like it in blue.