Capes and Tails.

[Canadane]

While a Cape toggle would be one thing, it's not entirely unique to capes where the tails look bad. Tails clipping through longer coats, and certain robes also look rather lazily designed. Because of that, I think a tail toggle would make more sense, since with it they don't have to go around and design armors with tailed races in mind, or make a second unique model of armors for them...

Many coats have slight adjustments for tailed races, where there's a tie-off for the hole or such there.
While doesn't stop clipping in general, at least it's something they've taken notice of.

Considering they have multiple races with a tail they shouldn't have a "tail toggle", they should just do their job and properly model outfits.