Philly Cyclists Peel Off to Promote Cleaner Air

PHILADELPHIA -- Hundreds of naked and partially nude cyclists have pedaled their way through Philadelphia to promote bicycling awareness and cleaner air.

Some of the buff bikers wore body paint, some were in bathing suits and some were completely naked.

This was the second year for the Philly Naked Bike Ride. Similar rides have taken place in more than 70 cities worldwide since 2004.

The bicyclists pedaled several miles through the city on Sunday evening.