This is Andrew Slaughter, UK's shadow Human Rights minister's piece on his visit to refugee camp 'The Jungle' in Calais, France. He writes:
I understood why many of the volunteers, like Martin McTigue, a senior manager with the London Ambulance Service who had driven us to ‘the Jungle’, were wearing wellies. But I noticed some of the refugees wearing trainers, crocs or flip flops.
"I wore boots as instructed by my hosts from medical charity Hands International, but the mud was soon coming over them.

The mud dominates life in the Jungle, a refugee camp that the French authorities do not recognise as such. On the day I visited, rain alternated with sunshine, the weather was mild for December but a strong wind created a chill and battered the tents where most live.