Bras's forever clean
Bras easily put on dark edges. It does not have to be - this is how every bra stays clean forever:
In particular, white bras put on with time darker edges. What did not I do to get my bras clean again? Gardiennew, soaking for hours, bleaching, eternal scrubbing, brushing ... it's easy.
Every dirt falls off of its own accord, since I simply soak my bras in some water with gall soap and then wash them out well. It's incredible how well that works.