Tim Shieff Parkour
Baring all: Free running world champion Tim Shieff stripped off for a naked series of photographs of him climbing across buildings in central London
Stripped off: The 26-year-old scaled buildings across the capital while wearing no clothes for a set of prints which will be sold for charity
Nude: Mr Shieff was seen running through tunnels and dangling off bridges for the shoot which took place in November last year
Naked chef: The prints will be sold to raise money for Jamie Oliver's Food Foundation charity. Mr Shieff regularly appears on the chef's YouTube channel as he is a leading figure in the vegan and raw food movements
It took four days last November for fellow free running expert Jason Paul to take the pictures.
'These shots would not have been possible for a normal photographer, ' Mr Shieff, 26, said.
'Not only did he need to climb too, but he also understands body positioning and posture.
'It was dangerous at times. We couldn't get permission from a lot of the buildings, so while the reaction was great from people who spotted us, some security guards were not happy.
'There were moments when you learn you are stronger than you think. Many situations were life or death.'
The photographs were taken by fellow free running expert Jason Paul, who had to clamber up the buildings himself to take the pictures
Mr Shieff did not have permission to climb some of the buildings, angering security guards but entertaining members of the public who spotted him climbing up some of London's finest architecture
Naked ambition: 2009 World Freerun Championship winner Mr Shieff came up with the idea after holding a similar naked shoot in Greece
The images can be purchased for between £100 and £600, with a proportion of the money going to the Jamie Oliver Food Foundation
The project aimed to compare the 'rigid and linear' structure of London's architecture with the 'curves' of the human form, Mr Paul said.
The 2009 world free running champion often appears in Jamie Oliver's YouTube channel Food Tube as he is a leading figure in the vegan and raw food movements.