In Pictures: No Trousers On The Tube Day 2018 | Londonist
AFP News Agency on Twitter: ""No Pants Subway Ride" is also marked around the world. People take part in London where the annual event is called 'No Trousers On The Tube Day'
No Pants Subway Ride 2017: Commuters around the world strip off for celebration of silliness
No Trousers Tube Ride 2019: Londoners strip off on Underground to banish January blues | London Evening Standard | Evening Standard
People across the world travel in their underwear on No Trousers on the Tube day - Independent.ie
No trousers on the Underground day: Commuters leave their outerwear at home | Daily Mail Online
Going Undieground: Commuters brave bracing temperatures and leave their trousers at home for 13th annual No Pants Day | Daily Mail Online
London commuters brave the elements for annual 'No Trousers Tube Ride' day | The Irish Post
No Trousers Tube Ride 2020: London's Quirky Annual Event Is Back
No Trousers Tube Ride 2020: Londoners put on their best pants to take part in the London Undergrounds silliest event - MyLondon