A group of women in Portland, Maine, took their tops off and marched in the streets on Saturday to promote what they call "equal opportunity public toplessness."

The protest attracted as many as 500 onlookers — some showing their support, others calling the demonstration “offensive.” In Portland it is legal for women to go topless in public.

Organizer Ty MacDowell said the point of the protest is to desensitize the public to seeing topless women — that a shirtless woman shouldn't attract any more attention than a man who walks around without a shirt.

"We should be able to walk down the street and not have this many men taking pictures of us," a participant screamed to news cameras.

Watch video coverage here.