Justine Masché was born on 22 December 1992 in Fulda, Germany. From 2011 to 2014, she trained to become a custom dressmaker at the Mainz State Theatre. Afterwards, she made her way to the German capital, where she began her studies at the Berlin University of the Arts in the Fashion Design department. After various internships in Berlin, London and Paris, she received a design scholarship from Central Saint Martins art school in London, where she studied from 2017 to 2018. She then returned to Berlin where she completed her studies in 2019, graduating with a Bachelor of Arts.
Masché has lived in London since January 2020, where she works as Product Developer / Design Coordinator for the fashion label Vivienne Westwood. In her work, she is particularly interested in the emotional connection between clothing and the wearer in the form of clothing memories.