This can be summed up as "fabrics that look a bit funny", such as strangely shiny coats and dresses at Lanvin and bobbled fur and leather at Prada.
See also "burnt", "blistered", "puckered" and "bubbled", none of which, it has to be said, are adjectives one generally sees in a fashion context, but it's always nice to give all words their moment in the sun. And also "bleeding", which refers to colours blending into one another. The more medically slanted "bleeding" is more acceptable than the more common description of "tie-dyed" because hippies are tres passe these days - very 2004/5 as part of the hastily forgotten boho era.
Published on The Guardian