Robert Rauschenberg was a pioneer in collage, but he didn’t do fashion. Well, unless you consider putting a tire around a stuffed goat as accessorization.
He did owe some of his collage sensibility to his mother, who was a professional seamstress. Cutting out paper patterns was something Rauschenberg did from boyhood.
His collage breakthroughs in the 1950’s incorporated photo transfer processes that put mass media into art in a new way. And in recent years, his imagery has had its impact on fashion and fabric.