As cyclists around the world join for the 9th World Naked Bike Ride, those in Madrid ride nude through the city center in protest against the rudeness car drivers and the inactivity of the city authorities.
The World Naked Bike Ride was started in 2004 as a demonstration against pollution and oil dependency.
Over the years, it has taken on different forms in different countries but the general theme is the same: participants are encouraged to take part in a ‘clothing-optional’ bike ride to "deliver a vision of a cleaner, safer, body-positive world."
The dress code motto is "bare as you dare", with full and partial nudity encouraged, but not mandatory.
Creativity is also encouraged to generate a fun and immersive atmosphere during the ride, capture the attention and imagination of the public and media.
This year in Madrid the riders called on authorities to provide safer cycle routes and for drivers to respect cyclists.