I'll dye my petticoat a burning red
And round the world I'll earn my bread
Until my parents shall wish me dead
Is go dtéigh tú, a mhúirnín, slán.

Makes it pretty clear what's in question, doesn't it? On the other hand, the women of the west of Ireland wored "red petticoats" (red wool skirts, dyed with a particular kind of lichen to make them a rich red) as their normal costume, and heaven knows these were deeply respectable women.