Let me set the scene. You’re at a festival and music is about to play. You’ve got all of ten minutes to make it to the loo and back. Do you wait it out, or run the risk of missing the crucial first minutes of your favourite act?
It’s a scenario most women find themselves in. Of course, it’s not confined to women alone, but the queues for female loos are often much longer than the men's.
For Amber Probyn, 25, and Hazel McShane, 23, this is a structural inequality issue. “Women have had enough, and are in a position now to accept a taboo product,” they say.