Hundreds of mostly nude bicyclists joined curious spectators in the city's Tower Grove Park on Saturday night for a 10-mile "World Naked Bike Ride."
The ride has been staged in 70 cities worldwide since 2004 as a way to protest society's dependence on oil.
St. Louis police were on hand to ensure the riders wore the bare minimum, which included thongs, pasties, loin cloths, bathing suits and even body painting.
However, officers didn't seem to notice one rider wearing nothing but a pink derby hat.
