No Pants Subway Ride 2015: Underground passengers across the world strip down to their underpants

The annual event was first started by seven friends in

Underground passengers from across the world left their pants at home over the weekend to celebrate the 14th annual No Pants Subway Ride.

Travellers of all shapes and sizes joined together in some of the world’s biggest cities on Sunday to take part in the yearly tradition that was started by comedy group Improv Everywhere in New York in 2000.

The day started when a group of seven guys decided one day to travel on New York’s subway without any trousers on.

Since then, the silliness has spread like wildfire, with pant-less passengers being found in every corner of the globe.

This year it is believed that the No Pants Subway Ride was the most popular ever, with tens of thousands taking part.