French schoolboys have been turning up to lessons wearing skirts as a show of support for equality between sexes.
The stunt, part of the 'What the Skirt Raises' campaign which aims to raise awareness of sexism, was encouraged by school administrators in the Nantes region, invoking anger from traditionalist groups.
Tensions flared as conservative group 'Manif pour Tous' (Protest for All) protested outside the gates of the Lycee Clemenceau school in the western French city.
The group, which opposes gay marriage, say the movement is a secret government plot to promote 'gender theory', the idea that children's gender is not fixed at birth